岩田耕一

研究者氏名	岩田耕一
	イワタコウイチ
URL	https://www-cc.gakushuin.ac.jp/~20040130/index.htm
所属	学習院大学
部署	理学部化学科
職名	教授
学位	理学博士(東京大学)
J-Global ID	200901030161773730

研究キーワード

ionic liquids ,Raman spectroscopy ,lipid bilayer membranes ,脂質二重膜 ,ラマン分光法 ,イオン液体 ,化学反応 ,時間分解分光法 ,chemical reaction ,time-resolved spectroscopy

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

2018年5月

日本分光学会賞
岩田耕一

2000年

分子科学奨励森野基金

1997年

日本分光学会論文賞

論文

<1 234 >

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

We study the effects of symmetry breaking oil the photogenerated intramolecular charge transfer (CT) state of 9,9'-bianthryl (BA) with femtosecond time-resolved near-IR spectroscopy. The tirne-resolved near-IR spectra are measured in acetonitrile ...

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

Solvent-dependent intra- and intermolecular vibrational energy transfer from the triply degenerate CO stretch mode Of W(CO)(6) is observed in nine alkanes (CnH2n+2, n = 5-13) with single-color sub-picosecond time-resolved infrared spectroscopy. In...

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 time-resolved near-infrared spectra of TiO2 and Pt/TiO2 powders are measured at the wavelength region of 0.9-1.5 mum with the direct absorption method. Broad absorption bands of charge carriers, mainly free and trapped electrons, are o...

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

MISC

12 3 4 5 >

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

Conjugated polymers incorporated with cycloplatinated complexes (P1-Pt and P2-Pt) were used as dispersants for single-walled carbon nanotubes (SWCNTs). Significant changes in the UV-vis absorption spectra were observed after the formation of the p...

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 excited-state dynamics of pyrene incorporated into poly(substituted methylene)s is investigated by picosecond time-resolved fluorescence spectroscopy and femtosecond time-resolved near-IR absorption spectroscopy in the 900-1400 nm region. The ...

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 S. Ishihara T. Nakanishi

Physical Chemistry Chemical Physics 20(5) 2970-2975 2018年2月

Novel regioisomeric alkylated-naphthalene liquids were designed and synthesized. In the solvent-free liquid state, 1-alkyloxy regioisomers showed excimeric luminescence, whereas 2-alkyloxy analogues exhibited monomer-rich luminescence features. Co...

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

Novel methodologies utilizing pulsed or intense CW irradiation obtained from lasers have a major impact on biological sciences. In this article, recent development in biophysical researches fully utilizing the laser irradiation is described for th...

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

© 2018 the Owner Societies. The electronic and vibrational relaxation of carotenoids is one of the key processes in the protection of living cells as well as in the functions of proteins involved in photosynthesis. In this study, the electronic an...

講演・口頭発表等

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““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