Keio University   Faculty of Science and Technology   Research Associat

2001 - 2003

Japan Society for the Promotion of Science   Special Researcher

1998 - 2001

Optical and Infrared Spectroscopy of Lumiflavin Protomers in a Cryogenic Ion Trap

Sotaro Ohara, Keisuke Hirata, Gilles Grégoire, Masaaki Fujii, Otto Dopfer, Shun-ichi Ishiuchi

The Journal of Physical Chemistry A   129 ( 24 )   5245 - 5250   2025.6

The Nicotine–Tryptophan Dimer: Probing the Principal Interaction of Nicotine with the Nicotinic Acetylcholine Receptor (nAChR), the Binding Pocket in the Human Brain

Yuika Okura, Madisen N. Hallsten, Garrett D. Santis, Keisuke Hirata, Masaaki Fujii, Shun-Ichi Ishiuchi, Sotiris S. Xantheas

Journal of the American Chemical Society   147 ( 17 )   14043 - 14047   2025.4

i-Motif DNA in isolated hemiprotonated cytosine dimers, studied using IR spectroscopy and theoretical calculations

Ana D. Parejo Vidal, Yuika Okura, Keisuke Hirata, Vijay Madhav Miriyala, Pavel Hobza, Shun-ichi Ishiuchi, Masaaki Fujii, Mattanjah S. de Vries

Physical Chemistry Chemical Physics   27 ( 19 )   9980 - 9990   2025

Unbuckling the 18-Crown-6 Ether Belt Around Metal Ions: Forging the Connection to the Condensed Phase

Ryu Sakuma, Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi

Journal of the American Chemical Society   2024.11

Enantioselective complexation of protonated tyrosine by a chiral crown‐ether: the nature of the Hydrogen bonds makes the difference.

Anne Zehnacker, Kien Xuan Vo, Keisuke Hirata, Bruno Martínez-Haya, Jos Oomens, Shun-ichi Ishiuchi, Masaaki Fujii

ChemPhysChem   2024.11

Releasing Preferentially Sequestered Na⁺ from Its Confinement by Beauvericin: A Single Water Molecule is the Accomplice

Kien X. Vo, Keisuke Hirata, James M. Lisy, Masaaki Fujii, Shun-ichi Ishiuchi

The Journal of Physical Chemistry A   2024.10

Water-Induced Dissociative Mechanism of Carboxylate and Divalent Calcium Ions Revealed by IR Laser Spectroscopy

Jean-Xavier Bardaud, Yurika Hayakawa, Hikaru Takayanagi, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Eric Gloaguen

The Journal of Physical Chemistry Letters   9295 - 9300   2024.9

Micro Solvation Effect of Methanol on Excited-State Dynamics of Protonated Tryptophan and Dopamine

Hideo Toma, Jun-ichi Tabata, Keisuke Hirata, Gilles Gregoire, Masaaki Fujii, Shun-ichi Ishiuchi

The Journal of Physical Chemistry A   2024.7

The Gas Phase Protonation Sites of Six Naturally Occurring Nicotinoids

Yuika Okura, Garrett D. Santis, Keisuke Hirata, Sotiris S. Xantheas, Masaaki Fujii, Shun-Ichi Ishiuchi

The Journal of Physical Chemistry Letters   6966 - 6973   2024.6

Affinity of Nicotinoids to a Model Nicotinic Acetylcholine Receptor (nAChR) Binding Pocket in the Human Brain

Garrett D. Santis, Yuika Okura, Keisuke Hirata, Shun-Ichi Ishiuchi, Masaaki Fujii, Sotiris S. Xantheas

The Journal of Physical Chemistry B   2024.5

Switching of Protonation Sites in Hydrated Nicotine via a Grotthuss Mechanism

Yuika Okura, Garrett D. Santis, Keisuke Hirata, Vasilios S. Melissas, Shun-ichi Ishiuchi, Masaaki Fujii, Sotiris S. Xantheas

Journal of the American Chemical Society   2024.1

Conformational preference of 2-(4-methoxyphenyl)ethanol studied by supersonic jet spectroscopy: Intramolecular OH/π interaction

Hironari Nagasawa, Sakuya Ogawa, Wataru Kashihara, Tasuku Isozaki, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Tadashi Suzuki

The Journal of Chemical Physics   160 ( 2 )   2024.1

Transition from vehicle to Grotthuss proton transfer in a nanosized flask: Cryogenic ion spectroscopy of protonated p-aminobenzoic acid solvated with D₂O

Keisuke Hirata, Kyota Akasaka, Otto Dopfer, Shun-ichi Ishiuchi, Masaaki Fujii

Chemical Science   2024

Infrared Spectra of Beauvericin-Alkaline Earth Metal Ion Complexes─Ion Preference to Physiological Ions

Kien X. Vo, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry A   2023.8

Does Chiral Sensitivity of a Structure Depend on the Metal Core? Alkali Ion Complexes of Cyclo(Tyr‐Tyr)

Koki Yoshizawa, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker

ChemPhysChem   2023.7

Ion Recognition beyond Size Matching: Cooperative Hydration Effect on the K⁺ Selectivity of Valinomycin over Na⁺ Revealed by Cryogenic Double Ion Trap Infrared Spectroscopy

Keisuke Hirata, Eiko Sato, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry Letters   14 ( 24 )   5567 - 5572   2023.6

Can Ag⁺ Permeate through a Potassium Ion Channel? A Bottom-Up Approach by Infrared Spectroscopy of the Ag⁺ Complex with the Partial Peptide of a Selectivity Filter

Satoru Tanabe, Keisuke Hirata, Koichi Tsukiyama, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry Letters   2886 - 2890   2023.3

Thermodynamics and kinetics of a partial peptide of K⁺ channels: DFT transition state calculations coupled with temperature-controlled gas phase laser spectroscopy

Yukina Suzuki, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

Bulletin of the Chemical Society of Japan   2023.2

Similarity scores of vibrational spectra reveal the atomistic structure of pentapeptides in multiple basins

Hiroki Otaki, Shun-ichi Ishiuchi, Masaaki Fujii, Yuji Sugita, Kiyoshi Yagi

ChemRxiv   10.26434/chemrxiv-2023-qn9rc   2023.2

Stepwise hydration of [CH₃COOMg]⁺ studied by cold ion trap infrared spectroscopy: insights into interactions in the magnesium channel selection filters

Hikaru Takayanagi, jean-xavier bardaud, Keisuke Hirata, Valerie Brenner, Eric Gloaguen, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   2023

Na⁺ Selective Binding by Beauvericin and Its Mechanism Studied by Mass-Coupled Cold Ion Trap Infrared Spectroscopy

Kien X. Vo, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry Letters   11330 - 11334   2022.12

Ultraviolet and infrared spectra of mono-, di- and tri-hydrated clusters of protonated noradrenaline – Solvation and conformational variations

Keisuke Yamaguchi, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii

Chemical Physics Letters   806   140014 - 140014   2022.11

Conformer‐selective Photodynamics of TrpH+‐H2O

Franco Molina, Jordan Dezalay, Jun-ichi Tabata, Satchin Soorkia, Michel Broquier, Keisuke Hirata, Shun-Ichi Ishiuchi, Masaaki Fujii, Gilles Grégoire

ChemPhysChem   2022.9

Do Stereochemical Effects Overcome a Charge-Induced Perturbation in Isolated Protonated Cyclo(Tyr-Tyr)?

Koki Yoshizawa, Keisuke Hirata, Shun-Ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker

The Journal of Physical Chemistry A   126 ( 37 )   6387 - 6394   2022.9

Structure of Gas Phase Monohydrated Nicotine: Implications for Nicotine’s Native Structure in the Acetylcholine Binding Protein

Garrett D. Santis, Naoya Takeda, Keisuke Hirata, Kazuya Tsuruta, Shun-ichi Ishiuchi, Sotiris S. Xantheas, Masaaki Fujii

Journal of the American Chemical Society   2022.8

Excited state dynamics of protonated dopamine: Hydration and conformation effects Reviewed

Keisuke Hirata, Ken-ichi Kasai, Koki Yoshizawa, Gilles Gregoire, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   24 ( 18 )   10737 - 10744   2022.5

A Bottom-up approach to the ion recognition mechanism of K⁺ channels from the laser spectroscopy of hydrated partial peptide - alkali metal ion complexes

Yukina Suzuki, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   2022

Collision-assisted stripping for determination of microsolvation-dependent protonation sites in hydrated clusters by cryogenic ion trap infrared spectroscopy: the case of benzocaineH⁺(H₂O)_n

Keisuke Hirata, Fuad Haddad, Otto Dopfer, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   24 ( 10 )   5774 - 5779   2022

Cation-responsive cavity expansion of valinomycin revealed by cryogenic ion trap infrared spectroscopy

Keisuke Hirata, Eiko Sato, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   2022

Hydration-induced protomer switching in p-aminobenzoic acid studied by cold double ion trap infrared spectroscopy

Kyota Akasaka, Keisuke Hirata, Fuad Haddad, Otto Dopfer, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   2022

Gas phase protonated nicotine is a mixture of pyridine- and pyrrolidine-protonated conformers: implications for its native structure in the nicotinic acetylcholine receptor

Naoya Takeda, Keisuke Hirata, Kazuya Tsuruta, Garrett D. Santis, Sotiris S. Xantheas, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   24 ( 10 )   5786 - 5793   2022

Hydration-controlled excited-state relaxation in protonated dopamine studied by cryogenic ion spectroscopy

Keisuke Hirata, Ken-ichi Kasai, Gilles Grégoire, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Chemical Physics   155 ( 15 )   151101 - 151101   2021.10

Double Ion Trap Laser Spectroscopy of Alkali Metal Ion Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels—Temperature Effect and Barrier for Conformational Conversions

Yukina Suzuki, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry A   2021.10

Rethinking Ion Transport by Ionophores: Experimental and Computational Investigation of Single Water Hydration in Valinomycin-K+ Complexes

Eiko Sato, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry Letters   1754 - 1758   2021.2

Potassium and Sodium Ions Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels Studied by Cold Ion Trap Infrared Spectroscopy: Effect of Hydration

Takumi Negoro, Keisuke Hirata, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

Physical Chemistry Chemical Physics   2021

Cryogenic Ion Spectroscopy of a Singly Protonated Peptide DYYVVR: Locating Phosphorylation Sites of a Kinase Domain

Jang Han Kwon, Min Ji Lee, Gyeongok Song, Kazuya Tsuruta, Shun-Ichi Ishiuchi, Masaaki Fujii, Hyuk Kang

Journal of Physical Chemistry Letters   11 ( 17 )   7103 - 7108   2020.9

Excited-state proton transfer in protonated adrenaline revealed by cryogenic UV photodissociation spectroscopy Reviewed

Jordan Dezalay, Michel Broquier, Satchin Soorkia, Keisuke Hirata, Shun-ichi Ishiuchi, Masaaki Fujii, Gilles Grégoire

Physical Chemistry Chemical Physics   22 ( 20 )   11498 - 11507   2020.4

Alkali and Alkaline Earth Metal Ions Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels Studied by a Cold Ion Trap Infrared Spectroscopy

Remina Otsuka, Keisuke Hirata, Yuta Sasaki, James M. Lisy, Shun-ichi Ishiuchi, Masaaki Fujii

ChemPhysChem   21 ( 8 )   712 - 724   2020.4

Alkali and Alkaline Earth Metal Ions Complexes with a Partial Peptide of the Selectivity Filter in K+ Channels Studied by a Cold Ion Trap Infrared Spectroscopy

Remina Otsuka, Keisuke Hirata, Yuta Sasaki, James M. Lisy, Shun-Ichi Ishiuchi, Masaaki Fujii

Chemphyschem : a European journal of chemical physics and physical chemistry   21 ( 8 )   687   2020.4

Excited state hydrogen transfer dynamics in phenol–(NH3)2 studied by picosecond UV-near IR-UV time-resolved spectroscopy

Shun-ichi Ishiuchi, Junko Kamizori, Norihiro Tsuji, Makoto Sakai, Mitsuhiko Miyazaki, Claude Dedonder, Christophe Jouvet, Masaaki Fujii

Physical Chemistry Chemical Physics   22 ( 10 )   5740 - 5748   2020

Chiral discrimination between tyrosine and β-cyclodextrin revealed by cryogenic ion trap infrared spectroscopy

Keisuke Hirata, Yuta Mori, Shun-ichi Ishiuchi, Masaaki Fujii, Anne Zehnacker

Physical Chemistry Chemical Physics   2020

Ionization-Induced π→H Site Switching in Resorcinol?Arn?(N = 1 and 2) Clusters Probed by Infrared Spectroscopy Reviewed

Mitsuhiko Miyazaki, Kuntal Chatterjee, Kaori Hattori, Remina Otsuka, Shun-ichi Ishiuchi, Otto Dopfer, Masaaki Fujii

The Journal of Physical Chemistry A   123 ( 32 )   6828 - 6839   2019.8

Probing the selectivity of Li+ and Na+ cations on noradrenaline at the molecular level Reviewed

Shun-ichi Ishiuchi, Hiromichi Wako, Sotiris S. Xantheas, Masaaki Fujii

Faraday Discussions   217   396 - 413   2019.7

Can the Partial Peptide SIVSF of the β2-Adrenergic Receptor Recognize Chirality of the Epinephrine Neurotransmitter? Reviewed

Masato Tamura, Tsubasa Sekiguchi, Shun-ichi Ishiuchi, Anne Zehnacker-Rentien, Masaaki Fujii

The Journal of Physical Chemistry Letters   10 ( 10 )   2470 - 2474   2019.5

Ion-peptide interactions between alkali metal ions and a termini-protected dipeptide; Modeling a portion of the selectivity filter in K+ channels Reviewed

Shun-ichi Ishiuchi, Yuta Sasaki, James M. Lisy, Masaaki Fujii

Physical Chemistry Chemical Physics   21 ( 2 )   561 - 571   2019.1

Probing chirality recognition of protonated glutamic acid dimers by gas-phase vibrational spectroscopy and first-principles simulations Reviewed

Johanna Klyne, Aude Bouchet, Shun-ichi Ishiuchi, Masaaki Fujii, Markus Schneider, Carsten Baldauf, Otto Dopfer

Physical Chemistry Chemical Physics   20 ( 45 )   28452 - 28464   2018.12

Entropic effects make a more tightly folded conformer of a β-amino acid less stable: UV-UV hole burning and IR dip spectroscopy of L-β3-homotryptophan using a laser desorption supersonic jet technique Reviewed

Woon Yong Sohn, Jeong Jin Kim, Myeongwon Jeon, Takuma Aoki, Shun-ichi Ishiuchi, Masaaki Fujii, Hyuk Kang

Physical Chemistry Chemical Physics   20 ( 30 )   19979 - 19986   2018.8

Molecular Recognition by a Short Partial Peptide of the Adrenergic Receptor: A Bottom-Up Approach Reviewed

Tsubasa Sekiguchi, Masato Tamura, Hikari Oba, Pierre ?ar?arbal, Rolando Rafael Lozada-Garcia, Anne Zehnacker-Rentien, Gilles Gr?goire, Shun-ichi Ishiuchi, Masaaki Fujii

Angewandte Chemie International Edition   57 ( 20 )   5626 - 5629   2018.5

Cation-Size-Dependent Conformational Locking of Glutamic Acid by Alkali Ions: Infrared Photodissociation Spectroscopy of Cryogenic Ions Reviewed

Johanna Klyne, Aude Bouchet, Shun-ichi Ishiuchi, Masaaki Fujii, Otto Dopfer

The Journal of Physical Chemistry B   122 ( 8 )   2295 - 2306   2018.3

Stereochemistry-dependent structure of hydrogen-bonded protonated dimers: The case of 1-amino-2-indanol Reviewed

Aude Bouchet, Johanna Klyne, Shun-Ichi Ishiuchi, Otto Dopfer, Masaaki Fujii, Anne Zehnacker

Physical Chemistry Chemical Physics   20 ( 18 )   12430 - 12443   2018

Conformation of protonated glutamic acid at room and cryogenic temperatures Reviewed

Aude Bouchet, Johanna Klyne, Shun-ichi Ishiuchi, Masaaki Fujii, Otto Dopfer

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   19 ( 17 )   10767 - 10776   2017.5

A conformational study of protonated noradrenaline by UV-UV and IR dip double resonance laser spectroscopy combined with an electrospray and a cold ion trap method Reviewed

Hiromichi Wako, Shun-ichi Ishiuchi, Daichi Kato, Geraldine Feraud, Claude Dedonder-Lardeux, Christophe Jouvet, Masaaki Fujii

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   19 ( 17 )   10777 - 10785   2017.5

High-cooling-efficiency cryogenic quadrupole ion trap and UV-UV hole burning spectroscopy of protonated tyrosine Reviewed

Shun-ichi Ishiuchi, Hiromichi Wako, Daichi Kato, Masaaki Fujii

JOURNAL OF MOLECULAR SPECTROSCOPY   332   45 - 51   2017.2

Anharmonic Vibrational Analyses of Pentapeptide Conformations Explored with Enhanced Sampling Simulations Reviewed

Otaki Hiroki, Yagi Kiyoshi, Ishiuchi Shun-ichi, Fujii Masaaki, Sugita Yuji

JOURNAL OF PHYSICAL CHEMISTRY B   120 ( 39 )   10199 - 10213   2016.10

Gas phase ultraviolet and infrared spectroscopy on a partial peptide of β2-adrenoceptor SIVSF-NH2 by a laser desorption supersonic jet technique Reviewed

Shun-ichi Ishiuchi, Kohei Yamada, Hikari Oba, Hiromichi Wako, Masaaki Fujii

Physical Chemistry Chemical Physics   18 ( 33 )   23277 - 23284   2016.9

Effective Strategy for Conformer-Selective Detection of Short-Lived Excited State Species: Application to the IR Spectroscopy of the N1H Keto Tautomer of Guanine Reviewed

Hiroya Asami, Munefumi Tokugawa, Yoshiaki Masaki, Shun-ichi Ishiuchi, Eric Gloaguen, Kohji Seio, Hiroyuki Saigusa, Masaaki Fujii, Mitsuo Sekine, Michel Mons

The Journal of Physical Chemistry A   120 ( 14 )   2179 - 2184   2016.4

Structural motifs of 2-(2-fluoro-phenyl)-ethylamine conformers Reviewed

Nitzan Mayorkas, Hanan Sachs, Markus Sch?tz, Shun-ichi Ishiuchi, Masaaki Fujii, Otto Dopfer, Ilana Bar

Physical Chemistry Chemical Physics   18 ( 2 )   1191 - 1201   2016.1

Spectroscopic study of jet-cooled indole-3-carbinol by laser desorption technique: Franck?Condon simulations and anharmonic calculations Reviewed

Ahreum Ahn, Ahreum Min, Cheol Joo Moon, Ji Hoon Lee, Seung Jun Lee, Taichi Warashina, Shun-ichi Ishiuchi, Masaaki Fujii, Myong Yong Choi

Chemical Physics Letters   638   237 - 243   2015.10

Mass analyzed threshold ionization detected infrared spectroscopy: isomerization activity of the phenol?Ar cluster near the ionization threshold Reviewed

Mitsuhiko Miyazaki, Shunpei Yoshikawa, Fran?ois Michels, Kentaro Misawa, Shun-ichi Ishiuchi, Makoto Sakai, Otto Dopfer, Klaus M?ller-Dethlefs, Masaaki Fujii

Physical Chemistry Chemical Physics   17 ( 4 )   2949 - 2503   2015.1

UV-UV hole burning and IR dip spectroscopy of homophenylalanine by laser desorption supersonic jet technique Reviewed

Woon Yong Sohn, Shun-ichi Ishiuchi, Pierre ?ar?abal, Hikari Oba, Masaaki Fujii

Chemical Physics   445   21 - 30   2014.12

Fast Nonradiative Decay in o-Aminophenol Reviewed

Marcela C. Capello, Michel Broquier, Shun-Ichi Ishiuchi, Woon Y. Sohn, Masaaki Fujii, Claude Dedonder-Lardeux, Christophe Jouvet, Gustavo A. Pino

The Journal of Physical Chemistry A   118 ( 11 )   2056 - 2062   2014.4

Solvent Migration in Microhydrated Aromatic Aggregates: Ionization‐Induced Site Switching in the 4‐Aminobenzonitrile?Water Cluster Reviewed

Takashi Nakamura, Matthias Schmies, Alexander Patzer, Mitsuhiko Miyazaki, Shun-ichi Ishiuchi, Martin Weiler, Otto Dopfer, Masaaki Fujii

Chemistry - A European Journal   20 ( 7 )   7月23日 - 7月31日   2014.2

Ionization-induced π→H site-switching in phenol?CH4 complexes studied using IR dip spectroscopy Reviewed

Mitsuhiko Miyazaki, Akihiro Takeda, Matthias Schmies, Makoto Sakai, Kentaro Misawa, Shun-ichi Ishiuchi, Fran?ois Michels, Klaus M?ller-Dethlefs, Otto Dopfer, Masaaki Fujii

Physical Chemistry Chemical Physics   16 ( 1 )   110 - 116   2014.1

Unusual Behavior in the First Excited State Lifetime of Catechol Reviewed

Martin Weiler, Mitsuhiko Miyazaki, G?raldine F?raud, Shun-ichi Ishiuchi, Claude Dedonder, Christophe Jouvet, Masaaki Fujii

The Journal of Physical Chemistry Letters   4 ( 22 )   3819 - 3823   2013.11

Laser Desorption Supersonic Jet Spectroscopy of Octopamine by Its Hydrochloride Salt Reviewed

Shun-ichi Ishiuchi, Hirokazu Sone, Masaaki Fujii

Chemistry Letters   42 ( 10 )   1166 - 1167   2013.10

Gas-Phase Spectroscopy of Laser-Desorbed Acedan and Proline-Acedan Reviewed

Hae Jun Jung, Woon Yong Sohn, Cheol Ho Heo, Hwan Myung Kim, Shun-ichi Ishiuchi, Masaaki Fujii, Hyuk Kang

Bulletin of the Korean Chemical Society   34 ( 8 )   2241 - 2242   2013.8

Gas-phase spectroscopy and anharmonic vibrational analysis of the 3-residue peptide Z-Pro-Leu-Gly-NH2 by the laser desorption supersonic jet technique Reviewed

Ishiuchi Shun-ichi, Yamada Kohei, Chakraborty Shamik, Yagi Kiyoshi, Fujii Masaaki

CHEMICAL PHYSICS   419   145 - 152   2013.6

Revised conformational assignments and conformational evolution of tyrosine by laser desorption supersonic jet laser spectroscopy Reviewed

Yoko Shimozono, Kohei Yamada, Shun-ichi Ishiuchi, Koichi Tsukiyama, Masaaki Fujii

Physical Chemistry Chemical Physics   15 ( 14 )   5163 - 5175   2013.4

Microsolvation of the 4-Aminobenzonitrile Cation (ABN+) in a Nonpolar Solvent: IR Spectra of ABN+-Ln (L=Ar and N2, n≦4) Reviewed

Matthias Schmies, Alexander Patzer, Sarah Kruppe, Mitsuhiko Miyazaki, Shun-ichi Ishiuchi, Masaaki Fujii, Otto Dopfer

ChemPhysChem   14 ( 4 )   728 - 740   2013.3

IR Spectroscopy of the 4-Aminobenzonitrile-Ar Cluster in the S0, S1 Neutral and D0 Cationic States Reviewed

Takashi Nakamura, Mitsuhiko Miyazaki, Shun-ichi Ishiuchi, Martin Weiler, Matthias Schmies, Otto Dopfer, Masaaki Fujii

ChemPhysChem   14 ( 4 )   741 - 745   2013.3

Imaging of Polycyclic Aromatic Hydrocarbons by Means of Sputtered Neutral Mass Spectrometry Using a Diode-pumped Solid-State Laser Reviewed

Kenji OHISHI, Tetsuo SAKAMOTO, Jiro SAIKAWA, Naoya ISHIGAKI, Koji TOJO, Yutaka IDO, Shun-ichi ISHIUCHI, Kentaro MISAWA, Masaaki FUJII

Analytical Sciences   29 ( 3 )   291 - 295   2013.3

Ground State Proton Transfer in Phenol-(NH3)n (n?11) Clusters Studied by Mid-IR Spectroscopy in 3-10 μm Range Reviewed

Mitsuhiko Miyazaki, Ayako Kawanishi, Iben Nielsen, Ivan Alata, Shun-ichi Ishiuchi, Claude Dedonder, Christophe Jouvet, Masaaki Fujii

The Journal of Physical Chemistry A   117 ( 7 )   1522 - 1530   2013.2

Structure of 1-naphthol?water clusters in the S1 state studied by UV?IR fluorescence dip spectroscopy and ab initio molecular orbital calculations Reviewed

Toshihiko Shimizu, Ruriko Yoshino, Shun-ichi Ishiuchi, Kenro Hashimoto, Mitsuhiko Miyazaki, Masaaki Fujii

Chemical Physics Letters   557   19 - 25   2013.2

Conformationally resolved spectra of Acetaminophen by UV-UV hole burning and IR dip spectroscopy in gas phase Reviewed

Woon Yong Sohn, Shun-ichi Ishiuchi, Mitsuhiko Miyazaki, Jeong Seok Kang, So Young Lee, Ahreum Min, Myong Yong Choi, Hyuk Kang, Masaaki Fujii

Physical Chemistry Chemical Physics   15 ( 3 )   957 - 964   2013.1

Gas phase IR spectra of tri-peptide Z-Pro-Leu-Gly: Effect of C-terminal amide capping on secondary structure Reviewed

Shamik Chakraborty, Kohei Yamada, Shun-ichi Ishiuchi, Masaaki Fujii

Chemical Physics Letters   531   41 - 45   2012.4

A two-color tunable infrared/vacuum ultraviolet spectrometer for high-resolution spectroscopy of molecules in molecular beams Reviewed

Jonathan R. Woodward, Hirokazu Watanabe, Shun-ichi Ishiuchi, Masaaki Fujii

Review of Scientific Instruments   83 ( 1 )   014102-1 - 014102-9   2012.1

Gas-phase Infrared Spectroscopy of Monopeptides from 10 to 3 ?m Reviewed

Mitsuhiko Miyazaki, Koji Makara, Shun-ichi Ishiuchi, Masaaki Fujii

Chemistry Letters   40 ( 10 )   1157 - 1158   2011.10

Gas-Phase Spectroscopy of Synephrine by Laser Desorption Supersonic Jet Technique Reviewed

Shun-ichi Ishiuchi, Toshiro Asakawa, Haruhiko Mitsuda, Mitsuhiko Miyazaki, Shamik Chakraborty, Masaaki Fujii

The Journal of Physical Chemistry A   115 ( 37 )   10363 - 10369   2011.9

Isomerization reaction in high-n Rydberg states of phenol-Ar/Kr clusters measured by autoionization detected infrared spectroscopy Reviewed

Mitsuhiko Miyazaki, Shinya Tanaka, Shun-ichi Ishiuchi, Otto Dopfer, Masaaki Fujii

Chemical Physics Letters   513 ( 4-6 )   208 - 211   2011.9

Hole-Burning Spectra of m-Fluorophenol/Ammonia (1:3) Clusters and Their Excited State Hydrogen Transfer Dynamics Reviewed

Norihiro Tsuji, Shun-ichi Ishiuchi, Christophe Jouvet, Claude Dedonder-Lardeux, Mitsuhiko Miyazaki, Makoto Sakai, Masaaki Fujii

ChemPhysChem   12 ( 10 )   1928 - 1934   2011.7

Conformational reduction of DOPA in the gas phase studied by laser desorption supersonic jet laser spectroscopy Reviewed

Shun-ichi Ishiuchi, Haruhiko Mitsuda, Toshiro Asakawa, Mitsuhiko Miyazaki, Masaaki Fujii

Physical Chemistry Chemical Physics   13 ( 17 )   7812 - 7820   2011.5

Photoionization-induced large-amplitude pendular motion in phenol+-Kr Reviewed

Mitsuhiko Miyazaki, Akihiro Takeda, Shun-ichi Ishiuchi, Makoto Sakai, Otto Dopfer, Masaaki Fujii

Physical Chemistry Chemical Physics   13 ( 7 )   2744 - 2747   2011.2

Ionization-induced π → H site switching dynamics in phenol-Ar3 Reviewed

Shun-ichi Ishiuchi, Mitsuhiko Miyazaki, Makoto Sakai, Masaaki Fujii, Matthias Schmies, Otto Dopfer

Physical Chemistry Chemical Physics   13 ( 6 )   2409 - 2416   2011.2

Structural Evolution of (1-NpOH)(n) Clusters Studied by R2PI and IR Dip Spectroscopies Reviewed

Saeki Morihisa, Ishiuchi Shun-ichi, Sakai Makoto, Hashimoto Kenro, Fujii Masaaki

JOURNAL OF PHYSICAL CHEMISTRY A   114 ( 42 )   11210 - 11215   2010.10

Dissociation energetics of the phenol+…Ar2 cluster ion: The role of π→H isomerization Reviewed

Xin Tong, Antonio Armentano, Mikko Riese, Med Ben Yezzar, Simon M. Pimblott, Klaus M?ller-Dethlefs, Shun-ichi Ishiuchi, Makoto Sakai, Akihiro Takeda, Masaaki Fujii, Otto Dopfer

The Journal of Chemical Physics   133 ( 15 )   154308-1 - 154308-5   2010.10

Evidence for Catechol Ring- Induced Conformational Restriction in Neurotransmitters Reviewed

Haruhiko Mitsuda, Mitsuhiko Miyazaki, Iben B. Nielsen, Pierre ?ar?abal, Claude Dedonder, Cristophe Jouvet, Shun-ichi Ishiuchi, Masaaki Fujii

The Journal of Physical Chemistry Letters   1 ( 7 )   1130 - 1133   2010.4

Measurement of adiabatic ionization energies of the rotational isomers of n-propylbenzene and m-fluorophenol by direct VUV laser photoionization Reviewed

Hirokazu Watanabe, Shun-ichi Ishiuchi, Kentaro Misawa, Mitsuhiko Miyazaki, Jonathan, R. Woodward, Masaaki Fujii

Chemical Physics Letters   485 ( 1-3 )   31 - 35   2010.1

Real-time Analysis of Benzene in Exhaust Gas from Driving Automobiles Using Jet-REMPI Method Reviewed

Kentaro Misawa, Shun-ichi Ishiuchi, Masaaki Fujii, Jun Matsumoto, Koichi Tanaka, Jun Nakagawa, Katsumi Endo, Shunichi Hayashi, Kotaro Tanaka, Hiroyuki Yamada, Yuichi Goto

SAE Technical papers   2009-01-2740   2009.11

レーザーイオン化法による自動車排出ガスのリアルタイム質量分析（第2報） ―モード走行時の排出傾向― // Real-time Mass Spectrometry of Exhaust Gas from Automobiles Utilizing Laser Ionization (Second Report) ―Emission Trends in Driving Mode― Reviewed

田中 光太郎, 三澤 健太郎, 田中 康一, 松本 淳, 石内 俊一, 齊川 次郎, 藤井 正明, 林 俊一, 柏木 隆宏, 中川 潤, 遠藤 克己, 渡辺 敬太郎, 山田 裕之, 後藤 雄一, Kotaro Tanaka, Kentaro Misawa, Koichi Tanaka, Jun Matsumoto, Shun-ichi Ishiuchi, Jiro Saikawa, Masaaki Fujii, Shun-ichi Hayashi, Takahiro Kashiwagi, Jun Nakagawa, Katsumi Endo, Keitaro Watanabe, Hiroyuki Yamada, Yuichi Goto

自動車技術会論文集   40 ( 5 )   1339 - 1344   2009.9

レーザーイオン化 法による自動車排出ガスのリアルタイム質量分析（第1報） ―多成分同時分析装置の開発― // Real-time Mass Spectrometry of Exhaust Gas from Automobiles Utilizing Laser Ionization (First Report) ―Development of Simultaneous Analyzer of Multicomponents― Reviewed

三澤 健太郎, 田中 光太郎, 田中 康一, 松本 淳, 石内 俊一, 齊川 次郎, 林 俊一, 藤井 正明, 柏木 隆宏, 中川 潤, 遠藤 克己, 渡辺 敬太郎, 山田 裕之, 後藤 雄一, Kentaro Misawa, Kotaro Tanaka, Koichi Tanaka, Jun Matsumoto, Shun-ichi Ishiuchi, Jiro Saikawa, Shun-ichi Hayashi, Masaaki Fujii, Takahiro Kashiwagi, Jun Nakagawa, Katsumi Endo, Keitaro Watanabe, Hiroyuki Yamada, Yuichi Goto

自動車技術会論文集   40 ( 5 )   1333 - 1338   2009.9

Simultaneous Measurements for Multicomponents of VOCs and PAHs in Diesel Exhaust Gas using a Laser Ionization Method Reviewed

Kotaro Suzaki, Hiroyuki Yamada, Yuichi Goto, Kentaro Misawa, Jun Matsumoto, Masaaki Fujii, Koichi Tanaka, Keitaro Watanabe, Shun-ichi Ishiuchi, Jun Nakagawa, Katsumi Endo, Shunichi Hayashi

SAE Technical papers   2009-01-1842   2009.6

Time-resolved measurements of low concentration aromatic hydrocarbons in diesel exhaust using a resonance enhanced multi-photon ionization method Reviewed

Kentaro Misawa, Koichi Tanaka, Hiroyuki Yamada, Yuichi Goto, Jun Matsumoto, Yohei Yamato, Shun-ichi Ishiuchi, Masaaki Fujii, Katsumi Endo, Shun-ichi Hayashi

Internatinal Journal of Engine research   10 ( 6 )   409 - 417   2009.6

IR spectra of resorcinol+-Arn cluster cations (n = 1, 2): Evidence for photoionization-induced π → H isomerization Reviewed

Alexander Patzer, Judith Langer, Harald Knorke, Helge Neitsch, Otto Dopfer, Mitsuhiko Miyazaki, Kaori Hattori, Akihiro Takeda, Shun-ichi Ishiuchi, Masaaki Fujii

Chemical Physics Letters   474 ( 1-3 )   7 - 12   2009.5

The most stable conformer of benzyl alcohol Reviewed

Benjamin J. Miller, Henrik G. Kjaergaard, Kaori Hattori, Shun-ichi Ishiuchi, Masaaki Fujii

Chemical Physics Letters   466 ( 1-3 )   21 - 26   2008.11

Development of Supercritical Fluid Jet Spectroscopy and Its Application for Spectroscopy of Supra Functional Systems Reviewed

ISHIUCHI Shun-ichi, Fujii Masaaki

Bunko Kenkyu   57 ( 4 )   158 - 167   2008.8

Real-Time and Direct Measurement of Pollutants in Exhaust Gas Utilizing Supersonic Jet/Resonance Enhanced Multi-Photon Ionization Reviewed

Kentaro Misawa, Jun Matsumoto, Yohei Yamato, Saori Mae, Shun-ichi Ishiuchi, Masaaki Fujii, Koichi Tanaka, Tetsuya Suzuki, Shun-ichi Hayashi, Hiroyuki Yamada, Yuichi Goto

SAE Technical Papers   2008-01-0761   2008.4

Development of high sensitive on-line laser ionization mass spectrometer for environmental hazardous organic compounds Reviewed

Shun-ichi Fiayashi, Tetsuya Suzuki, Shun-ichi Ishiuchi, Masaaki Fujii

BUNSEKI KAGAKU   57 ( 4 )   227 - 237   2008.4

環境負荷物質分析のための高感度オンラインレーザーイオン化質量分析装置の開発 Reviewed

林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明

分析化学   57 ( 4 )   227 - 237   2008.4

超高感度レーザー分析の最前線＝分子選択的リアルタイム高感度分析＝ Reviewed

三澤 健太郎, 松本 淳, 石内 俊一, 藤井 正明, 林 俊一

光アライアンス   19 ( 3 )   48 - 52   2008.3

超音速分子ジェット多光子共鳴イオン化質量分析装置を用いる石炭加熱時のナフタレン発生挙動の観察 Reviewed

相本 道宏, 西藤 将之, 林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明

分析化学   56 ( 12 )   1133 - 1139   2007.12

Thermal emission monitoring of naphthalene from coals by supersonic jet resonance enhanced multi-photon ionization time-of-flight mass spectrometry technique Reviewed

Michiro Aimoto, Masayuki Nishifuji, Shun-ichi Hayashi, Tetsuya Suzuki, Shun-ichi Ishiuchi, Masaaki Fujii

BUNSEKI KAGAKU   56 ( 12 )   1133 - 1139   2007.12

共鳴多光子イオン化法を用いたオンサイト・リアルタイム質量分析 // On-site and Real-time Mass Spectrometer Utilizing the Resonance Enhanced Multi-photon Ionization Technique Reviewed

松本 淳, 三澤 健太郎, 石内 俊一, 鈴木 哲也, 林 俊一, 藤井 正明

真空 Journal of the Vacuum Society of Japan   50 ( 4 )   241 - 245   2007.4

Vibrational Overtone Spectroscopy of Phenol and Its Deuterated Isotopomers Reviewed

Shun-ichi Ishiuchi, Masaaki Fujii, Timothy W. Robinson, Benjamin J. Miller, Henrik G. Kjaergaard

The Journal of Physical Chemistry A   110 ( 23 )   7345 - 7354   2006.6

超音速分子ジェット多光分子吸収イオン化質量分析法を基本とする環境負荷物質リアルタイムモニタリング装置の開発 // Development of Real Time Monitoring Apparatus Based on Jet-REMPI Technique for the Determination of Hazardous Organic Compounds Reviewed

林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明

鉄と鋼   92 ( 4 )   262 - 267   2006.4

レーザーイオン化質量分析による超微量物質検出 Reviewed

林 俊一, 鈴木 哲也, 石内 俊一, 藤井 正明

レーザー研究   34 ( 4 )   283 - 288   2006.4

Analysis of a fluorescence depletion process of Rhodamine 6G in a PMMA matrix induced by nano- and picosecond lasers Reviewed

Takeshi Watanabe, Yoshinori Iketaki, Makoto Sakai, Tsutom Ohmori, Tadashi Ueda, Takaya Yamanaka, Shun-ichi Ishiuchi, Masaaki Fujii

Chemical Physics Letters   420 ( 4-6 )   410 - 415   2006.3

A New, Highly Sensitive Time-of-Flight Mass Spectrometer Consisting of a Flangeon-type Conical Ion Lens System and a Proto-type Daly Detector for Exhaust Gas Analysis Based on the Jet-REMPI Technique Reviewed

Tetsuya SUZUKI, Shun-ichi HAYASHI, Shun-ichi ISHIUCHI, Morihisa SAEKI, Masaaki FUJII

Analytical Sciences   21 ( 8 )   991 - 996   2005.8

Pulsed field ionisation - ZEKE photoelectron spectrum of o-, m- and p-tolunitrile Reviewed

K Suzuki, S Ishiuchi, M Sakai, M Fujii

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA   142 ( 3 )   215 - 221   2005.3

Vibrational overtone spectroscopy of jet-cooled aminophenols as a probe for rotational isomers Reviewed

Timothy W. Robinson, Henrik G. Kjaergaard, Shun-Ichi Ishiuchi, Minako Shinozaki, Masaaki Fujii

Journal of Physical Chemistry A   108 ( 20 )   4420 - 4427   2004.5

Formation of a doughnut laser beam for super-resolving microscopy using a phase spatial light modulator Reviewed

T Watanabe, Y Igasaki, N Fukuchi, M Sakai, S Ishiuchi, M Fujii, T Omatsu, K Yamamoto, Y Iketaki

OPTICAL ENGINEERING   43 ( 5 )   1136 - 1143   2004.5

Predicted Spatial Resolution of Super-Resolving Fluorescence Microscopy Using Two-Color Fluorescence Dip Spectroscopy Reviewed

Yoshinori Iketaki, Takeshi Watanabe, Shun-Ichi Ishiuchi, Makoto Sakai, Takashige Omatsu, Kimihisa Yamamoto, Masaaki Fujii

Applied Spectroscopy   57 ( 10 )   1312 - 1316   2003.10

Two-color far-field super-resolution microscope using a doughnut beam Reviewed

Watanabe T, Iketaki Y, Omatsu T, Yamamoto K, Ishiuchi S, Sakai M, Fujii M

CHEMICAL PHYSICS LETTERS   371 ( 5-6 )   634 - 639   2003.4

Photochemistry of Phenol-(NH₃)_n Clusters: Solvent Effect of a Radical Cleavage of an OH bond in an Electronically Excited State and Intracluster reactions of the Product NH4(NH3)n-1 (n ?5) Reviewed

Kota Daigoku, Shun'ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Kenro Hashimoto

J. Chem. Phys.   119 ( 10 )   5149 - 5158   2003

Far-field super-resolution scanning fluorescence microscope by using up-conversion-depletion technique

Takeshi Watanabe, Makoto Sakai, Shun-Ichi Ishiuchi, Masaaki Fujii, Yoshinori Iketaki, Takashige Omatsu, Kimihisa Yamamoto

OSA Trends in Optics and Photonics Series   88   750 - 752   2003

The PFI-ZEKE photoelectron spectrum of m-fluorophenol and its aqueous complexes: Comparing intermolecular vibrations in rotational isomers Reviewed

Keigo Yosida, Kazunari Suzuki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Caroline E, H. Dessent, Klaus M?ller-Dethlefs

Physical Chemistry Chemical Physics   4 ( 12 )   2534 - 2538   2002.6

Structure of 1-naphthol/alcohol clusters studied by IR dip spectroscopy and ab initio molecular orbital calculations Reviewed

Saeki M, Ishiuchi S, Sakai M, Fujii M

JOURNAL OF PHYSICAL CHEMISTRY A   105 ( 44 )   10045 - 10053   2001.11

Structures of carbazole-(H2O)(n) (n=1-3) clusters studied by IR dip spectroscopy and a quantum chemical calculation Reviewed

Sakai M, Daigoku K, Ishiuchi S, Saeki M, Hashimoto K, Fujii M

JOURNAL OF PHYSICAL CHEMISTRY A   105 ( 38 )   8651 - 8657   2001.9

Electronic and infrared spectra of jet-cooled 4-aminobenzonitrile-H_²O. Change of NH from proton acceptor to proton donor by CN substitution Reviewed

Kenji Sakota, Norifumi Yamamoto, Kazuhiko Ohashi, Hiroshi Sekiya, Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii

Chemical Physics Letters   341   70-76   2001

Pico-second time-resolved infrared spectra of photo-excited phenol-(NH₃)₃ cluster Reviewed

Shun-ichi Ishiuchi, Makoto Sakai, Kota Daigoku, Tadashi Ueda, Takaya Yamanaka, Kenro Hashimoto, Masaaki Fujii

Chem. Phys. Lett.   347   87 - 92   2001

Structure and dynamics of 9(10H)-acridone and its hydrated clusters. II. Structural characterization of hydrogen-bonding networks

M Mitsui, Y Ohshima, S Ishiuchi, M Sakai, M Fujii

JOURNAL OF PHYSICAL CHEMISTRY A   104 ( 38 )   8649 - 8659   2000.9

Infrared dip spectra of photochemical reaction products in a phenol/ammonia cluster: examination of intracluster hydrogen transfer Reviewed

Ishiuchi S, Saeki M, Sakai M, Fujii M

CHEMICAL PHYSICS LETTERS   322 ( 1-2 )   27 - 32   2000.5

Structural characterization of the acridine-(H2O)n (n=1-3) clusters by fluorescence-detected infrared spectroscopy

M Mitsui, Y Ohshima, S Ishiuchi, M Sakai, M Fujii

CHEMICAL PHYSICS LETTERS   317 ( 3-5 )   211 - 219   2000.2

Structure of 1-Naphthol-Water Clusters as Studied by IR Dip Spectroscopy and Ab Initio Molecular Orbital Calculation Reviewed

R. Yoshino, K. Hashimoto, T. Omi, S. Ishiuchi, M. Fujii

J. Phys. Chem. A   102   6227 - 6223   1998

Overtone spectroscopy of jet-cooled phenol studied by nonresonant ionization detected IR spectroscopy Reviewed

S Ishiuchi, M Fujii

RESONANCE IONIZATION SPECTROSCOPY   454   137 - 142   1998

Electronic spectra of 7-azaindole/ammonia clusters and their photochemical reactivity

Yuna Koizumi, Christophe Jouvet, Tsuji Norihiro, Shun-ichi Ishiuchi, Claude Dedonder-Lardeux, Masaaki Fujii

JOURNAL OF CHEMICAL PHYSICS   129 ( 10 )   2008.9

Electronic spectra of 7-azaindole/ammonia clusters and their photochemical reactivity

Yuna Koizumi, Christophe Jouvet, Tsuji Norihiro, Shun-ichi Ishiuchi, Claude Dedonder-Lardeux, Masaaki Fujii

JOURNAL OF CHEMICAL PHYSICS   129 ( 10 )   104311   2008.9

EM2-2: Time-Resolved Measurements of Aromatic Hydrocarbon in Exhaust Gas Using Resonance Enhanced Multi-Photon Ionization Method(EM: Exhaust Emission Control and Measurement,General Session Papers)

SUZAKI Kotaro, YAMADA Hiroyuki, GOTO Yuichi, MISAWA Kentaro, MATSUMOTO Jun, YAMATO Yohei, ISHIUCHI Shunichi, FUJII Masaaki, TANAKA Koichi, ENDO Katsumi, HAYASHI Shunichi

The ... international symposium on diagnostics and modeling of combustion in internal combustion engines   2008 ( 7 )   725 - 730   2008.7

Real-time and Direct Analysis of Pollutants in Exhaust Gas Utilizing Resonance Enhanced multi-photon ionization (1) 窶骭€ Monitoring System for Realgas Sample 窶骭

Jun Matsumoto, Kentaro Misawa, Yohei Yamato, Saori Mae, Shun-ichi Ishiuchi, Masaaki Fujii, Koichi Tanaka, Tetsuya Suzuki, Shun-ichi Hayashi, Hiroyuki Yamada, Yuichi Goto

Review of Automotive Engineering.   29   119 - 121   2008

Real-time and Direct Analysis of Pollutants in Exhaust Gas Utilizing Resonance Enhanced Multi-photon Ionization (2) : Variations of Emissions Under Test Driving Modes

MISAWA Kentaro, MATSUMOTO Jun, YAMATO Yohei, MAE Saori, ISHIUCHI Shun-ichi, FUJII Masaaki, TANAKA Koichi, SUZUKI Tetsuya, HAYASHI Shun-ichi, YAMADA Hiroyuki, GOTO Yuichi

Review of Automotive Engineering   29 ( 1 )   123 - 125   2008

Real-time and Direct Analysis of Pollutants in Exhaust Gas Utilizing Resonance Enhanced Multi-photon Ionization (1) : Monitoring System for Real Gas Sample

MATSUMOTO Jun, MISAWA Kentaro, YAMATO Yohei, MAE Saori, ISHIUCHI Shun-ichi, FUJII Masaaki, TANAKA Koichi, SUZUKI Tetsuya, HAYASHI Shun-ichi, YAMADA Hiroyuki, GOTO Yuichi

Review of Automotive Engineering   29 ( 1 )   119 - 121   2008

Real-time and Direct Analysis of Pollutants in Exhaust Gas Utilizing Resonance Enhanced multi-photon ionization (2) 窶天ariations of Emissions Under Test Driving Modes窶骭

Kentaro Misawa, Jun Matsumoto, Yohei Yamato, Saori Mae, Shun-ichi Ishiuchi, Masaaki Fujii, Koichi Tanaka, Tetsuya Suzuki, Shun-ichi Hayashi, Hiroyuki Yamada, Yuichi Goto

Review of Automotive Engineering   29 ( 1 )   123 - 125   2008

Hydrogen transfer dynamics in a photoexcited phenol/ammonia (1 : 3) cluster studied by picosecond time-resolved UV-IR-UV ion dip spectroscopy

Shun-ichi Ishiuchi, Makoto Sakai, Kota Daigoku, Kenro Hashimoto, Masaaki Fujii

JOURNAL OF CHEMICAL PHYSICS   127 ( 23 )   234304   2007.12

IR signature of the photoionization-induced hydrophobic -> hydrophilic site switching in phenol-Ar-n clusters

Shun-ichi Ishiuchi, Makoto Sakai, Yuji Tsuchida, Akihiro Takeda, Yasutake Kawashima, Otto Dopfer, Klaus Mueller-Dethlefs, Masaaki Fujii

JOURNAL OF CHEMICAL PHYSICS   127 ( 11 )   114307   2007.9

IR signature of the photoionization-induced hydrophobic -> hydrophilic site switching in phenol-Ar-n clusters

Shun-ichi Ishiuchi, Makoto Sakai, Yuji Tsuchida, Akihiro Takeda, Yasutake Kawashima, Otto Dopfer, Klaus Mueller-Dethlefs, Masaaki Fujii

JOURNAL OF CHEMICAL PHYSICS   127 ( 11 )   114307   2007.9

IR spectra of phenol(+)-Kr-n cluster cations (n=1,2): Evidence for photoionization-induced pi -> H isomerization

Akihiro Takeda, Horia-Sorin Andrei, Mitsuhiko Miyazaki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Otto Dopfer

CHEMICAL PHYSICS LETTERS   443 ( 4-6 )   227 - 231   2007.8

Hole-burning spectra of Phenol-Ar-n (n=1,2) clusters: Resolution of the isomer issue

Shun-Ichi Ishiuchi, Yuji Tsuchida, Otto Dopfer, Klaus Mueller-Dethlefs, Masaaki Fujii

JOURNAL OF PHYSICAL CHEMISTRY A   111 ( 31 )   7569 - 7575   2007.8

Vibrational OH-stretching overtone spectroscopy of jet-cooled resorcinol and hydroquinone rotamers

Kaori Hattori, Shun-ichi Ishiuchi, Masaaki Fujii, Daryl L. Howard, Henrik G. Kjaergaard

JOURNAL OF PHYSICAL CHEMISTRY A   111 ( 27 )   6028 - 6033   2007.7

Structure of the jet-cooled 1-naphthol dimer studied by IR dip spectroscopy: Cooperation between the π-π interaction and the hydrogen bonding

Morihisa Saeki, Shun-Ichi Ishiuchi, Makoto Sakai, Masaaki Fujii

Journal of Physical Chemistry A   111 ( 6 )   1001 - 1005   2007.2

Structure of the jet-cooled 1-naphthol dimer studied by IR dip spectroscopy: Cooperation between the pi-pi interaction and the hydrogen bonding

Morihisa Saeki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii

JOURNAL OF PHYSICAL CHEMISTRY A   111 ( 6 )   1001 - 1005   2007.2

Hydrogen transfer dynamics in a photoexcited phenol/ammonia (1:3) cluster studied by picosecond time-resolved UV-IR-UV ion dip spectroscopy

Shun-Ichi Ishiuchi, Makoto Sakai, Kota Daigoku, Kenro Hashimoto, Masaaki Fujii

Journal of Chemical Physics   127 ( 23 )   234304   2007

IR signature of the photoionization-induced hydrophobic R hydrophilic site switching in phenol-Arn clusters

Shun-ichi Ishiuchi, Makoto Sakai, Yuji Tsuchida, Akihiro Takeda, Yasutake Kawashima, Otto Dopfer, Klaus Muller-Dethlefs, Masaaki Fujii

Virtual Journal of Nanoscale Science & Technology   16 ( 14 )   2007

IR signature of the photoionization-induced hydrophobic R hydrophilic site switching in phenol-Arn clusters

Shun-ichi Ishiuchi, Makoto Sakai, Yuji Tsuchida, Akihiro Takeda, Yasutake Kawashima, Otto Dopfer, Klaus Muller-Dethlefs, Masaaki Fujii

Virtual Journal of Nanoscale Science & Technology   16 ( 14 )   2007

Development of a supercritical fluid jet technique for supersonic jet laser spectroscopy of nonvolatile and pyrolytic molecules

Shun-Ichi Ishiuchi, Masaaki Fujii

Chemistry Letters   35 ( 9 )   1044 - 1045   2006.9

Development of a supercritical fluid jet technique for supersonic jet laser Spectroscopy of nonvolatile and pyrolytic molecules

Shun-ichi Ishiuchi, Masaaki Fujii

CHEMISTRY LETTERS   35 ( 9 )   1044 - 1045   2006.9

Excited state hydrogen transfer in fluorphenol center dot ammonia clusters studied by two-color REMPI spectroscopy

N Tsuji, S Ishiuchi, M Sakai, M Fujii, T Ebata, C Jouvet, C Dedonder-Lardeux

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   8 ( 1 )   114 - 121   2006

Excited state hydrogen transfer in fluorphenol center dot ammonia clusters studied by two-color REMPI spectroscopy

N Tsuji, S Ishiuchi, M Sakai, M Fujii, T Ebata, C Jouvet, C Dedonder-Lardeux

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   8 ( 1 )   114 - 121   2006

Development of Real Time Monitoring Instrument for Trace Gas Analysis based on Jet-REMPI Technique : Development of High Sensitive Daly detector

HAYASHI Shun-ichi

18 ( 3 )   653 - 653   2005.3

Theoretical investigation of the point-spread function given by super-resolving fluorescence microscopy using two-color fluorescence dip spectroscopy

Y Iketaki, T Watanabe, M Sakai, S Ishiuchi, M Fujii, T Watanabe

OPTICAL ENGINEERING   44 ( 3 )   2005.3

Real-time observation of ionization-induced hydrophobic -> hydrophilic switching

S Ishiuchi, M Sakai, Y Tsuchida, A Takeda, Y Kawashima, M Fujii, O Dopfer, K Muller-Dethlefs

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   44 ( 38 )   6149 - 6151   2005

Real-time observation of ionization-induced hydrophobic -> hydrophilic switching

S Ishiuchi, M Sakai, Y Tsuchida, A Takeda, Y Kawashima, M Fujii, O Dopfer, K Muller-Dethlefs

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   44 ( 38 )   6149 - 6151   2005

Development of Real Time Monitoring Instrument for Trace Gas Analysis based on Jet-REMPI Technique

HAYASHI Shun-ichi

17 ( 6 )   1491 - 1491   2004.9

Four-color hole burning spectra of phenol/ammonia 1 : 3 and 1 : 4 clusters

S Ishiuchi, K Daigoku, K Hashimoto, M Fujii

JOURNAL OF CHEMICAL PHYSICS   120 ( 7 )   3215 - 3220   2004.2

Photo-excitation : Intact Ionization of Molecules by Resonant Enhanced Multiuphoton Ionization Spectroscopy

FUJII Masaaki, ISHIUCHI Shun-ichi, HAYASHI Shun-ichi

Journal of the Vacuum Society of Japan   47 ( 8 )   612 - 617   2004

Investigation of the fluorescence depletion process in the condensed phase; application to a tryptophan aqueous solution

Y Iketaki, T Watanabe, S Ishiuchi, M Sakai, T Omatsu, K Yamamoto, M Fujii, T Watanabe

CHEMICAL PHYSICS LETTERS   372 ( 5-6 )   773 - 778   2003.5

Development of Trace Gas Analysis in High Temperature Furnace Based on Jet-REMPI Instrument

HAYASHI Shun-ichi

16 ( 3 )   708 - 708   2003.3

The enhancement of the two-pint resolution of the far-field super-resolution microscopy by using two color fluorescence dip spectroscopy

Takeshi Watanabe, Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii, Yoshinori Iketaki Takashige, Omatsu Kimihisa Yamamoto

Opt. Express   11   3271   2003

Pulsed field ionization-ZEKE spectroscopy of 4-aminobenzonitrile-H2O. Hydrogen-bonding interaction in the amino site

K Sakota, N Yamamoto, K Ohashi, M Saeki, S Ishiuchi, M Sakai, M Fujii, H Sekiya

PHYSICAL CHEMISTRY CHEMICAL PHYSICS   5 ( 9 )   1775 - 1779   2003

The investigation for the fluorescence depletion process of the Rhodamine-6G molecule

Takeshi Watanabe, Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii, Yoshinori Iketaki Takashige, Omatsu Kimihisa Yamamoto

Chem. Phys. Lett   372   773 - 778   2003

Super-resolution Fluorescence Microscopy in Nano-meter Scale Region Using Two-color Laser Beams

IKETAKI Yoshinori, WATANABE Takeshi, SAKAI Makoto, ISHIUCHI Shun-ichi, OMATSU Takashige, YAMAMOTO Kimihisa, FUJII Masaaki

J. Surf. Sci. Soc. Jpn.   24 ( 7 )   2 - 9   2003

Hydrogen transfer in photo-excited phenol/ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio molecular orbital calculations. II. Vibrational transitions

Shun-Ichi Ishiuchi, Kota Daigoku, Morihisa Saeki, Makoto Sakai, Kenro Hashimoto, Masaaki Fujii

Journal of Chemical Physics   117 ( 15 )   7083 - 7093   2002.10

Hydrogen transfer in photo-excited phenol/ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio molecular orbital calculations. II. Vibrational transitions

S Ishiuchi, K Daigoku, M Saeki, M Sakai, K Hashimoto, M Fujii

JOURNAL OF CHEMICAL PHYSICS   117 ( 15 )   7083 - 7093   2002.10

IR-dip and IR-UV hole-burning spectra of jet-cooled 4-aminobenzonitrile-(H2O)(1). Observation of pi-type and sigma-type hydrogen-bonded conformers in the CN site

K Sakota, N Yamamoto, K Ohashi, M Saeki, S Ishiuchi, M Sakai, M Fujii, H Sekiya

CHEMICAL PHYSICS   283 ( 1-2 )   209 - 219   2002.10

Hydrogen transfer in photoexcited phenol/ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio molecular orbital calculations. I. Electronic transitions

S Ishiuchi, K Daigoku, M Saeki, M Sakai, K Hashimoto, M Fujii

JOURNAL OF CHEMICAL PHYSICS   117 ( 15 )   7077 - 7082   2002.10

Structure of hydrogen-bonded clusters of 7-azaindole studied by IR dip spectroscopy and ab initio molecular orbital calculation (vol 105A, pg 9371, 2001)

H Yokoyama, H Wantanabe, T Omi, S Ishiuchi, M Fujii

JOURNAL OF PHYSICAL CHEMISTRY A   106 ( 5 )   854 - 854   2002.2

Pulsed Field Ionization Zero Kinetic Energy Photoelectron Study on Methylanisole Molecules in a Supersonic Jet

Keigo Yosida, Kazunari Suzuki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Caroline E, H. Dessent, Klaus Muller-Dethlefs

Phys. Chem. Chem. Phys.   4   2534 - 2538   2002

OH- and CH-Stretching Overtone Spectra of Catechol

Henrik G. Kjaergaard Daryl L. Howar, Daniel P. Schofield Timothy, W. Robinson, Shun-ichi Ishiuchi, Masaaki Fujii

J. Phys. Chem. A   106   258   2002

Pulsed Field Ionization Zero Kinetic Energy Photoelectron Study on Methylanisole Molecules in a Supersonic Jet

Keigo Yosida, Kazunari Suzuki, Shun-ichi Ishiuchi, Makoto Sakai, Masaaki Fujii, Caroline E, H. Dessent, Klaus Muller-Dethlefs

Phys. Chem. Chem. Phys.   4   2534 - 2538   2002

Picosecond Time-Resolved Nonresonant Ionization Detected IR Spectroscopy on 7-Azaindole Dimer

Makoto Sakai, Shun-ichi Ishiuchi, Masaaki Fujii

Eur. J. Phys. D.   20   399   2002

Hydrogen Transfer in Photoexcited Phenol/ammonia Clusters by UV-IR-UV Ion Dip Spectroscopy and ab initio Molecular Orbital Calculations. I. Electronic Transitions

Shun-ichi Ishiuchi, Kota Daigoku, Morihisa Saeki, Makoto Sakai, Kenro Hashimoto, Masaaki Fujii

J. Chem. Phys.   117 ( 15 )   7077 - 7082   2002

Hydrogen transfer in photoexcited phenol/ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio molecular orbital calculations. I. Electronic transitions

S. Ishiuchi, K. Daigoku, M, Saeki, M. Sakai, K. Hashimoto, M. Fujii

Journal of Chemical Physics   117 ( 15 )   7077 - 7082   2002

Hydrogen Transfer in Photoexcited Phenol/ammonia Clusters by UV-IR-UV Ion Dip Spectroscopy and ab initio Molecular Orbital Calculations. I. Electronic Transitions

Shun-ichi Ishiuchi, Kota Daigoku, Morihisa Saeki, Makoto Sakai, Kenro Hashimoto, Masaaki Fujii

J. Chem. Phys.   117 ( 15 )   7077 - 7082   2002

Structure of Hydrogen-bonded Clusters of 7-Azaindole Studied by IR dip Spectroscopy and Ab Initio Molecular Orbital Calculation

Hiroshi Yokoyama, Hidekazu Watanabe Takuichiro Omi, Shun-ichi Ishiuchi, Masaaki Fujii

J. Phys. Chem. A   105   9366   2001

Internal Methyl Group Rotation in o-Cresol Studied by Pulsed Field Ionization - ZEKE Photoelectron Spectroscopy

Kazunari Suzuki, Yuji Emura, Shun-ichi Ishiuchi, Masaaki Fujii

J. Electron Spectrosc.   108   13   2000

Pulsed Field Ionization - ZEKE Spectroscopy of Cresoles and Their Aqueous Complex:Internal Rotation of Methyl Group and Intermolecular Vibrations

Kazunari Suzuki, Shun-ichi Ishiuchi, Masaaki Fujii

Faraday Discuss.   115   229   2000

Nonresonant ionization detected IR spectrum of jet-cooled phenol. Ionization mechanism and its application to overtone spectroscopy

S Ishiuchi, H Shitomi, K Takazawa, M Fujii

CHEMICAL PHYSICS LETTERS   283 ( 3-4 )   243 - 250   1998.2

Nonresonant ionization detected IR spectrum of jet-cooled phenol. Ionization mechanism and its application to overtone spectroscopy

S Ishiuchi, H Shitomi, K Takazawa, M Fujii

CHEMICAL PHYSICS LETTERS   283 ( 3-4 )   243 - 250   1998.2

Higher Vibrational States of Jet-cooled Phenol Studied by Nonresonant Ionization Detected IR Spectroscopy.

石内俊一, 蔀洋司, 高沢健, 藤井正明

化学反応討論会講演要旨集   12th   1996

IR-UV Double Resonance Spectrum of Phenol-Water Cluster-OH Stretching Overtone.

石内俊一, 蔀洋司, 藤井正明, 岩崎純史, 江幡孝之, 三上直彦

分子構造総合討論会講演要旨集   1996   1996

Rotational Isomers in Fluorophenols studied by IR-UV Double Resonance spectroscopy-Overtone spectroscopy of Water Cluster.

蔀洋司, 石内俊一, 藤井正明

分子構造総合討論会講演要旨集   1996   1996

Hydrogen transfer in photo-excited phenol / ammonia clusters by UV-IR-UV ion dip spectroscopy and ab initio MO calculations I : Electronic Transitions

J. Chem. Phys.  2002 

Hydration effect on ion-selectivity of ion channels studied by cold ion trap spectroscopy

Grant number：18H01938  2018.4 - 2021.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

Ishiuchi Shun-ichi

Structural diversity and hydration dynamics of hydrogen bonding system studied by gas-phase spectroscopy

Grant number：25104008  2013.6 - 2018.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Fujii Masaaki

Excited state dynamics of peptides by gas phase spectroscopy - photo protecting mechanism of protein

Grant number：25708001  2013.4 - 2016.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (A)

Ishiuchi Shun-ichi

Surface-assisted laser desorption/ionization mass analysis system with nano-scale surface modified sample substrate

Grant number：21310072  2009 - 2011

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

YONEZAWA Tetsu, FUJII Masaaki, ISHIUCHI Shun-ichi, ARAKAWA Ryuichi, KAWASAKI Hideya

Elementary process of molecular recognition from cluster to cell

Grant number：19056002  2007 - 2011

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Priority Areas

FUJII Masaaki, SAKAI Makoto, ISHIUCHI Shun-ichi, HASHIMOTO Kenro, MISAWA Kentaro, MIYAZAKI Mitsuhiko

Development of super critical fluid jet technique and its application to elucidate the mechanism of the molecular recognition

2002 - 2005

JST Basic Research Programs (Precursory Research for Embryonic Science and Technology :PRESTO) 

イオン化検出赤外分光法による孤立分子の高振動状態の研究

Grant number：98J06622  1998 - 2000

日本学術振興会  科学研究費助成事業  特別研究員奨励費

石内 俊一