岩田耕一 (Koichi Iwata) - マイポータル

基本情報

所属: 学習院大学理学部化学科教授

学位: 理学博士(東京大学)

J-GLOBAL ID: 200901030161773730
researchmap会員ID: 1000255661

外部リンク: https://www-cc.gakushuin.ac.jp/~20040130/index.htm

研究キーワード

研究分野

ナノテク・材料 / 基礎物理化学 /

経歴

学習院大学理学部化学科, 教授

受賞

論文

Femtosecond Time-resolved Near-infrared Spectroscopy of Oligothiophenes and Polythiophene: Energy Location and Effective Conjugation Length of Their Low-lying Excited States

Shunnosuke Okino, Tomohisa Takaya, Koichi Iwata

CHEMISTRY LETTERS 44(8) 1059-1061 2015年8月査読有り
Rapid microstructure characterization of polymer thin films with 2D-array multifocus Raman microspectroscopy

Ashok Zachariah Samuel, Sohshi Yabumoto, Kenichi Kawamura, Koichi Iwata

ANALYST 140(6) 1847-1851 2015年査読有り
Viscosity Heterogeneity inside Lipid Bilayers of Single-Component Phosphatidylcholine Liposomes Observed with Picosecond Time-Resolved Fluorescence Spectroscopy

Yuki Nojima, Koichi Iwata

JOURNAL OF PHYSICAL CHEMISTRY B 118(29) 8631-8641 2014年7月査読有り
Relaxation Mechanism of beta-Carotene from S-2 (1B(u)(+)) State to Si (2A(g)(-)) State: Femtosecond Time-Resolved Near-IR Absorption and Stimulated Resonance Raman Studies in 900-1550 nm Region

Tomohisa Takaya, Koichi Iwata

JOURNAL OF PHYSICAL CHEMISTRY A 118(23) 4071-4078 2014年6月査読有り
Ultrafast bimolecular radical reaction between S1 p-terphenyl and carbon tetrachloride: mode-specific acceleration of vibrational dephasing in reactant molecule

Koichi Iwata

JOURNAL OF RAMAN SPECTROSCOPY 39(11) 1512-1517 2008年11月査読有り
Interpretation of generalized grating imaging

Koichi Iwata

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION 25(9) 2244-2250 2008年9月査読有り
Local structure formation in alkyl-imidazolium-based ionic liquids as revealed by linear and nonlinear Raman spectroscopy

Koichi Iwata, Hajime Okajima, Satyen Saha, Hiro-O Hamaguchi

ACCOUNTS OF CHEMICAL RESEARCH 40(11) 1174-1181 2007年11月査読有り
Picosecond time-resolved fluorescence study on solute-solvent interaction of 2-Aminoquinoline in room-temperature ionic liquids: pai-pai aromatic complex formation and unusually slow rotational diffusion.

Koichi Iwata, Minoru Kakita, Hiro-o Hamaguchi

J. Phys. Chem. B 111(18) 4914-4919 2007年5月10日査読有り
Intra- and intermolecular vibrational energy transfer in tungsten carbonyl complexes W(CO)(5)(X) (X = CO, CS, CH3CN, and CD3CN)

Motohiro Banno, Koichi Iwata, Hiro-o Hamaguchi

JOURNAL OF CHEMICAL PHYSICS 126(20) 204501 2007年5月査読有り
Vibrational cooling process of S-1 trans-stilbene in ionic liquids observed with picosecond time-resolved Raman spectroscopy

Koichi Iwata, Kyousuke Yoshida, Yuta Takada, Hiro-o Hamaguchi

CHEMISTRY LETTERS 36(4) 504-505 2007年4月査読有り
Charge resonance character in the charge transfer state of bianthryls: Effect of symmetry breaking on time-resolved near-IR absorption spectra

T Takaya, S Saha, H Hamaguchi, M Sarkar, A Samanta, K Iwata

JOURNAL OF PHYSICAL CHEMISTRY A 110(13) 4291-4295 2006年4月
Solvent-dependent intra- and intermolecular vibrational energy transfer of W(CO)(6) probed with sub-picosecond time-resolved infrared spectroscopy

M Banno, S Sato, K Iwata, H Hamaguchi

CHEMICAL PHYSICS LETTERS 412(4-6) 464-469 2005年9月
フェムト秒時間分解近赤外分光法と「束縛の弱い電子」

岩田耕一

分光研究 54(3),153(3) 153-162 2005年
Carrier dynamics in TiO2 and Pt/TiO2 powders observed by femtosecond time-resolved near-infrared spectroscopy at a spectral region of 0.9-1.5 mu m with the direct absorption method

K Iwata, T Takaya, H Hamaguchi, A Yamakata, TA Ishibashi, H Onishi, H Kuroda

JOURNAL OF PHYSICAL CHEMISTRY B 108(52) 20233-20239 2004年12月
Femtosecond electron transfer dynamics of 9,9’-bianthryl in acetonitrile as studied by time-resolved near-infrared absorption spectroscopy

Chem. Phys. Lett. 399(1-3) 210-214 2004年11月
Photochemical Bimolecular Reaction between Biphenyl and Carbon Tetrachloride: observed ultrafast kinetics and Diffusion-Controlled Reaction Model

Chemical Physics Letters 347, 331 2001年
Microscopic Mechanism of the Solute-solvent Energy Dissipation Probed by Picosecond Time-resolved Raman Spectroscopy

J. Phys. Chem. A 101(4), 632 1997年
ピコ秒時間分解ラマン分光法

岩田耕一, 濱田宏夫

分光研究 44(2), 61(2) 61-73 1995年
時間分解赤外分光法とその短寿命分子種への応用

加藤千尋, 岩田耕一, 浜口宏夫

分光研究 40(5), 255(5) 255-274 1991年
Construction of a Versatile Microsecond Time-Resolved Infrared Spectrometer

Appl. Spectrosc. 44(9), 1431 1990年

MISC

Control of Electron Flow Direction in Photoexcited Cycloplatinated Complex Containing Conjugated Polymer-Single-Walled Carbon Nanotube Hybrids

Wenjuan Xiong, Lili Du, Kin Cheung Lo, Haiting Shi, Tomohisa Takaya, Koichi Iwata, Wai Kin Chan, David Lee Phillips

JOURNAL OF PHYSICAL CHEMISTRY LETTERS 9(14) 3819-3824 2018年7月
Excited-State Dynamics of Pyrene Incorporated into Poly(substituted methylene)s: Effects of Dense Packing of Pyrenes on Excimer Formation

Tomohisa Takaya, Tatsuya Oda, Yuki Shibazaki, Yumiko Hayashi, Hiroaki Shimomoto, Eiji Ihara, Yukihide Ishibashi, Tsuyoshi Asahi, Koichi Iwata

MACROMOLECULES 51(14) 5430-5439 2018年7月
The effect of regioisomerism on the photophysical properties of alkylated-naphthalene liquids

B. Narayan, K. Nagura, T. Takaya, K. Iwata, A. Shinohara, H. Shinmori, H. Wang, Q. Li, X. Sun, H. Li …

Physical Chemistry Chemical Physics 20(5) 2970-2975 2018年2月7日
Novel physical chemistry approaches in biophysical researches with advanced application of lasers: Detection and manipulation

Koichi Iwata, Masahide Terazima, Hiroshi Masuhara

Biochimica et Biophysica Acta - General Subjects 1862(2) 335-357 2018年2月1日
Vibrational relaxation dynamics of β-carotene and its derivatives with substituents on terminal rings in electronically excited states as studied by femtosecond time-resolved stimulated Raman spectroscopy in the near-IR region

Tomohisa Takaya, Masato Anan, Koichi Iwata

Physical Chemistry Chemical Physics 20(5) 3320-3327 2018年2月
Experimental and theoretical investigation of fluorescence solvatochromism of dialkoxyphenyl-pyrene molecules

Fengniu Lu, Naoki Kitamura, Tomohisa Takaya, Koichi Iwata, Takashi Nakanishi, Yuki Kurashige

PHYSICAL CHEMISTRY CHEMICAL PHYSICS 20(5) 3258-3264 2018年2月
The impact of metal complex lipids on viscosity and curvature of hybrid liposomes

Ryo Ohtani, Tsukasa Tokita, Tomohisa Takaya, Koichi Iwata, Masanao Kinoshita, Nobuaki Matsumori, Masaaki Nakamura, Leonard F. Lindoy, Shinya Hayami

CHEMICAL COMMUNICATIONS 53(99) 13249-13252 2017年12月
NIR luminescent heterodinuclear [Zn-II Ln(III)] complexes: Synthesis, crystal structures and photophysical properties

Nidhi Dwivedi, Sumit K. Panja, Abhineet Verma, Tomohisa Takaya, Koichi Iwata, Sailaja S. Sunkari, Satyen Saha

JOURNAL OF LUMINESCENCE 192 156-165 2017年12月
A Guide to Design Functional Molecular Liquids with Tailorable Properties using Pyrene-Fluorescence as a Probe

Fengniu Lu, Tomohisa Takaya, Koichi Iwata, Izuru Kawamura, Akinori Saeki, Masashi Ishii, Kazuhiko Nagura, Takashi Nakanishi

SCIENTIFIC REPORTS 7 2017年6月
Development of a femtosecond time-resolved near-IR multiplex stimulated Raman spectrometer in resonance with transitions in the 900-1550 nm region

Tomohisa Takaya, Koichi Iwata

ANALYST 141(14) 4283-4292 2016年
Electron Density Dependent Composition of the Solvation Shell of Phenol Derivatives in Binary Solutions of Water and Ethanol

Sandor Kunsagi-Mate, Koichi Iwata

JOURNAL OF SOLUTION CHEMISTRY 42(1) 165-171 2013年1月
Nanosecond Time-resolved Infrared Spectra and Structure of the Charge-transfer State of 9,9 '-Bianthryl in Acetonitrile

Nobuyuki Asami, Sohshi Yabumoto, Shinsuke Shigeto, Tomohisa Takaya, Hiro-o Hamaguchi, Koichi Iwata

CHEMISTRY LETTERS 41(6) 654-656 2012年6月
Local structures in ionic liquids probed and characterized by microscopic thermal diffusion monitored with picosecond time-resolved Raman spectroscopy

Kyousuke Yoshida, Koichi Iwata, Yoshio Nishiyama, Yoshifumi Kimura, Hiro-o Hamaguchi

JOURNAL OF CHEMICAL PHYSICS 136(10) 104504-1 - 104504-8 2012年3月
Two-step photoionization of trans-stilbene in acetonitrile via an ion-pair precursor studied with picosecond time-resolved absorption and Raman spectroscopies

Hiroko Miki, Kyousuke Yoshida, Chieko Kawate, Rintaro Shimada, Tomohisa Takaya, Koichi Iwata, Hiro-o Hamaguchi

CHEMICAL PHYSICS LETTERS 527 27-30 2012年2月
The role of the solvation shell decomposition of alkali metal ions in their selective complexation by resorcinarene and its cavitand

Yin Li, Zsolt Csok, Laszlo Kollar, Koichi Iwata, Erzsebet Szasz, Sandor Kunsagi-Mate

SUPRAMOLECULAR CHEMISTRY 24(6) 374-378 2012年
Lipid Bilayer Membrane of Egg-PC Liposome Evaluated as Chemical Reaction Field with Picosecond Time-Resolved Fluorescence Spectroscopy

Yuki Nojima, Koichi Iwata

CHEMISTRY-AN ASIAN JOURNAL 6(7) 1817-1824 2011年7月
Role of the Conformational Freedom of the Skeleton in the Complex Formation Ability of Resorcinarene Derivatives toward a Neutral Phenol Guest

Sandor Kunsagi-Mate, Zsolt Csok, Koichi Iwata, Erzsebet Szasz, Laszlo Kollar

JOURNAL OF PHYSICAL CHEMISTRY B 115(13) 3339-3343 2011年4月
Two Different Charge Transfer States of Photoexcited 9,9 '-Bianthryl in Polar and Nonpolar Solvents Characterized by Nanosecond Time-Resolved Near-IR Spectroscopy in the 4500-10 500 cm(-1) Region

Nobuyuki Asami, Tomohisa Takaya, Soshi Yabumoto, Shinsuke Shigeto, Hiro-o Hamaguchi, Koichi Iwata

JOURNAL OF PHYSICAL CHEMISTRY A 114(22) 6351-6355 2010年6月
Effect of cluster formation of solvent molecules on the preferential solvatation of anthracene in binary alcoholic solutions

Sandor Kunsagi-Mate, Koichi Iwata

CHEMICAL PHYSICS LETTERS 473(4-6) 284-287 2009年5月
Intermolecular Interaction between W(CO)(6) and Alkane Molecules Probed by Ultrafast Vibrational Energy Relaxation: Anomalously Strong Interaction between W(CO)(6) and Decane

Motohiro Banno, Koichi Iwata, Hiro-o Hamaguchi

JOURNAL OF PHYSICAL CHEMISTRY A 113(6) 1007-1011 2009年2月

もっとみる

講演・口頭発表等

““Loose Electrons” Examined with Femtosecond Time-Resolved Near-Infrared Spsectroscopy - Solvated Electron and TiO2 Single Crystals”

12th Trombay Symposium on Radiation and Photochemistry (TSRP-2014), IT-15, Bhabha Atomic Research Centre, Mumbai, India 2014年
“Basic processes of chemical reactions studied with picosecond time-resolved Raman spectroscopy and femtosecond time-resolved near-IR spectroscopy”

The First Taiwan International Symposium on Raman Spectroscopy, IL-2, National Chiao Tung University, Hsinchu, Taiwan 2013年
“How to measure a Raman spectrum...?”

Taiwan Association of Raman Spectroscopy Summer Camp, Hsinchu, Taiwan 2013年
“Basic Processes in Chemical Reactions Examined with Time-resolved Vibrational Spectroscopy”

Seventh International Conference on Advanced Vibrational Spectroscopy (ICAVS7), PL-4(Plenary Lecture), Kobe Convention Center, Kobe, Japan 2013年
“Photocarrier Dynamics in TiO2 Single Crystals Studied with Femtosecond Time-resolved Near-infrared Spectroscopy”

2013 Korea - Japan Symposium on Frontier Photoscience (KJFP-2013), Invited Lecture 50, Hoam Faculty House, Seoul National University, Seoul , Korea 2013年
“Electron Relaxation in Ionic Liquid and LaInO₃:Pr³⁺ Observed with Picosecond to Femtosecond Time-resolved Spectroscopies”

11th Trombay Symposium on Radiation and Photochemistry (TSRP2012), Bhabha Atomic Research Centre, Mumbai, India 2012年
“Electron Solvation Process in Room-temperature Ionic Liquid Observed with Femtosecond Time-resolved Near-infrared Spectroscopy”

2nd International Workshop on Radiation Effects in Nuclear Technology, The University of Tokyo, Tokyo, Japan 2012年
“Characterizing heterogeneous mesostructures with vibrational relaxation kinetics”

23rd International Conference on Raman Spectroscopy (ICORS2012), Indian Institute of Science, Bangalore, India 2012年
“Lipid bilayer membranes and ionic liquids observed with fast time-resolved spectroscopy”

Department Seminar, Department of General and Physical Chemistry, Pech University, Hungary 2012年
“Interior of Lipid Bilayer Membrane Characterized with Time-resolved Spectroscopic Techniques”

SPEC 2012 “Shedding New Light on Disease”, Chiang Mai, Thailand 2012年
“Lipid Bilayer Membrane In Egg-PC Liposome Evaluated as Chemical Reaction Field”

14th Asian Chemical Congress (14ACC),Bangkok, Thailand, INV- S9-02 2011年
“Solvation environments in liposome lipid bilayers probed with advanced fluorescence and Raman spectroscopies”

Molecular Spectroscopy with Biological Context - Recent Advances, 38th FACSS (Federation of Analytical Chemistry and Spectroscopy Societies), Reno, Nevada, USA 2011年
“Characterizing photogenerated carrier in semiconductor materials with femtosecond time-resolved near-IR spectroscopy and picosecond time-resolved emission spectroscopy”

8th Korrea-Japan Fonteer Symposium on Photosciences (KJFP-2011), KokMing University, Seoul, Korea 2011年
“Characterizing lipid bilayer membrane as chemical reaction field with time-resolved Raman and fluorescence spectroscopy” (Keynote Lecture)

9th Australasian Conference on Vibrational Spectroscopy (ACOVS9), Victoria University, Wellington, New Zealand 2011年
“Fast processes in mesoscopic structures examined with time-resolved spectroscopies”

Ohokayama workshop on fundamental photochemical processes in condensed media, Tokyo Institute of Technology, Tokyo, Japan 2010年
“Tracing elementary processes in chemical reaction with time-resolved spectroscopy - TiO₂ and micelle”

Department Seminar, Department of Chemistry, University of Hong Kong, , Hong Kong, China 2010年
“How Electron Relaxes in Micellar Solution, Ionic Liquid, and TiO2 Photocatalyst: Femtosecond Time-resolved Near-infrared Study”

Advanced Spectroscopy and Imaging in Molecular Science, National Chiao Tung University, Hsinchu, Taiwan 2010年
“Attempts with Raman Spectroscopy for Examining Macromolecules and Lipid Bilayer Membranes”

XXIIth International Conference on Raman Spectroscopy (ICORS2010), Boston, MA, USA, MOF 2010年
“New Attempts with Raman Spectroscopy for Examining Macromolecules and Lipid Bilayer Membranes”

The International Chemical Congress of Pacific Basin Societies (Pacifichem2010), Honolulu, Hawaii, USA, 781 2010年
“Microscopic Solvation Environments and Macroscopic Properties: Loss of Correlation in Ionic Liquid”

Science of Inoic Liquids, Satellite Conference for COIL-3, Cairns, Australia 2009年

もっとみる

岩田耕一

基本情報

研究キーワード

研究分野

経歴

受賞

論文

MISC

講演・口頭発表等

所属学協会

Works(作品等)

共同研究・競争的資金等の研究課題

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