• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Tracking of Absolute Configurations of Photo-driven Chiral Molecules by Ultrasensitive and Ultrafast Vibrational Circular Dichroism Spectroscopies

Publicly Offered Research

Project AreaScience on Function of Soft Molecular Systems by Cooperation of Theory and Experiment
Project/Area Number 16H00849
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionAoyama Gakuin University

Principal Investigator

坂本 章  青山学院大学, 理工学部, 教授 (90262146)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords赤外円偏光二色性分光 / 時間分解赤外分光 / 光学活性分子 / 光励起ダイナミクス / ラマン光学活性分光 / 時間分解分光 / 超精密計測 / 高性能レーザー / 赤外円偏光二色性分光法 / 時間分解赤外分光法 / ラマン光学活性分光法 / 時間分解ラマン分光法
Outline of Annual Research Achievements

本研究では,光励起によって生成する不安定分子種や短寿命過渡分子種を対象にした高感度・超高速赤外円偏光二色性(VCD)分光システムの開発を行い,そのような分子種の絶対配置の解析および追跡を目的とする.また,領域内共同研究も推進する.
平成29年度には,主に以下の4つの研究を行った.
(1) フェムト秒時間分解赤外マルチチャンネル分光システムの製作と応用:フェムト秒時間分解赤外マルチチャンネル分光システムを製作し,高速フォトクロミック分子や柔軟性と剛直性を併せもつアントラセン二量体系分子の光励起ダイナミクスを明らかにした.また,原子価異性を示す[CrCo]複核錯体の配位子金属間電荷移動バンドを光励起した際の光応答を追跡し,超高速光誘起分極スイッチングを実証した(領域内共同研究).
(2) 固体試料のVCD測定:固体試料でVCD測定を行うことができれば,例えば真空極低温下で準安定状態の捕捉ができるなど,測定対象となる化学種の幅が広がる.本研究では,軸不斉をもつ1,1'-ビ-2-ナフトール(BINOL)や螺旋不斉をもつヘリセン誘導体(領域内共同研究)について,KBr錠剤でのVCD測定の正確性を検証した.
(3) ラマン光学活性(ROA)分光の応用:ROA分光と量子化学計算を組み合わせることで,BINOLを初めとする6つの1,1'-ビナフチル誘導体の絶対配置の識別と溶液中の二面角(ビナフチル骨格間)の決定を行った.
(4) ベンゼン二量体型ラジカルカチオンの非局在電子を伴う大振幅振動の選択的観測:ベンゼン二量体のモデル分子[34](1,2,4,5)シクロファンのラジカルカチオンについて,近赤外光励起共鳴ラマン分光を行い,2つのベンゼン環に非局在化した電子と強く相互作用する低振動数領域の分子内大振幅振動の選択的観測と解析を行った.

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (29 results)

All 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Acknowledgement Compliant: 2 results) Presentation (22 results) (of which Int'l Joint Research: 12 results,  Invited: 2 results) Book (1 results)

  • [Journal Article] Selective resonance Raman enhancement of large amplitude inter-ring vibrations of [34](1,2,4,5)cyclophane radical cation; a model of π-stacked dimer radical ions2018

    • Author(s)
      Okajima Hajime、Shinmyozu Teruo、Sakamoto Akira
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 20 Issue: 5 Pages: 3395-3402

    • DOI

      10.1039/c7cp06720h

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flapping viscosity probe that shows polarity-independent ratiometric fluorescence2017

    • Author(s)
      Kotani Ryota、Sotome Hikaru、Okajima Hajime、Yokoyama Soichi、Nakaike Yumi、Kashiwagi Akihiro、Mori Chigusa、Nakada Yuki、Yamaguchi Shigehiro、Osuka Atsuhiro、Sakamoto Akira、Miyasaka Hiroshi、Saito Shohei
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 5 Issue: 21 Pages: 5248-5256

    • DOI

      10.1039/c7tc01533j

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct Observation of the Ultrafast Evolution of Open-Shell Biradical in Photochromic Radical Dimer2017

    • Author(s)
      Yoichi Kobayashi, Hajime Okajima, Hikaru Sotome, Takeshi Yanai, Katsuya Mutoh, Yusuke Yoneda, Yasuteru Shigeta, Akira Sakamoto, Hiroshi Miyasaka, and Jiro Abe
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 139 Issue: 18 Pages: 6382-6389

    • DOI

      10.1021/jacs.7b01598

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ATR-FTIR Study on Synthetic Peptide Analogues of the Ca2+-binding Sites of Ca2+-binding Proteins2017

    • Author(s)
      M. Nara, H. Morii, A. Sakamoto, T. Miyakawa, M. Tanokura
    • Journal Title

      Peptide Science

      Volume: 2016 Pages: 113-114

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flapping Viscosity Probe That Shows Polarity-Independent Ratiometric Fluorescence2017

    • Author(s)
      Ryota Kotani, Hikaru Sotome, Hajime Okajima, Soichi Yokoyama, Yumi Nakaike, Akihiro Kashiwagi, Chigusa Mori, Yuki Nakada, Shigehiro Yamaguchi, Atsuhiro Osuka, Akira Sakamoto, Hiroshi Miyasaka, and Shohei Saito
    • Journal Title

      J. Mater. Chem. C

      Volume: 5

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Directional Electron Transfer in Crystals of [CrCo] Dinuclear Complexes Achieved by Chirality-Assisted Preparative Method2016

    • Author(s)
      Shinji Kanegawa, Yoshihito Shiota, Soonchul Kang, Kazuyuki Takahashi, Hajime Okajima, Akira Sakamoto, Tatsuya Iwata, Hideki Kandori, Kazunari Yoshizawa, and Osamu Sato
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 138 Issue: 43 Pages: 14170-14173

    • DOI

      10.1021/jacs.6b05089

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Near-infrared Resonance Raman Spectroscopy of Excited Triphenylene, a Symmetric Polycyclic Aromatic Hydrocarbon2017

    • Author(s)
      H. Okajima and A. Sakamoto
    • Organizer
      The Fifth Taiwan International Symposium on Raman Spectroscopy
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Femtosecond Time-resolved Infrared Absorption Study on Photoexcited Dynamics of Regioregular Poly(3-hexylthiophene) in Solutions2017

    • Author(s)
      G. Aoyama, H. Okajima, A. Sakamoto
    • Organizer
      The Fifth Taiwan International Symposium on Raman Spectroscopy
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Determination of absolute configurations of binaphthyl derivatives in solution by Raman optical activity spectroscopy2017

    • Author(s)
      S. Itami, H. Okajima, A. Sakamoto
    • Organizer
      The Fifth Taiwan International Symposium on Raman Spectroscopy
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of Raman spectroelectrochemical system for tracing formation processes of radical ions2017

    • Author(s)
      I. Gomita, H. Okajima, A. Sakamoto
    • Organizer
      The Fifth Taiwan International Symposium on Raman Spectroscopy
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurements and analyses of infrared absorption spectra of the anionic species of benzophenone derivatives2017

    • Author(s)
      A. Shimomura, H. Okajima, A. Sakamoto
    • Organizer
      The Fifth Taiwan International Symposium on Raman Spectroscopy
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フェムト秒時間分解赤外分光法による溶液中及びフィルム中での立体規則性ポリ(3-ヘキシルチオフェン)の光励起ダイナミクス2017

    • Author(s)
      青山 元気,岡島 元,坂本 章
    • Organizer
      第11回分子科学討論会2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] 顕微ラマンイメージングを用いたマイクロリアクター内の液液混合過程の定量観察2017

    • Author(s)
      岡島 元,山田 志織,望月 眞馬,坂本 章
    • Organizer
      第11回分子科学討論会2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] In situラマン分光電気化学によるアントラセン誘導体のラジカルアニオンの構造解析2017

    • Author(s)
      五味田 一柊,岡島 元,坂本 章
    • Organizer
      第11回分子科学討論会2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] ラマン光学活性分光法による溶液中のビナフチル誘導体の二面角の決定2017

    • Author(s)
      伊丹 瀬怜奈,岡島 元,坂本 章
    • Organizer
      第11回分子科学討論会2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] ラジカルイオン種の生成過程を追跡するためのラマン分光電気化学システムの開発2017

    • Author(s)
      五味田 一柊,岡島 元,坂本 章
    • Organizer
      平成29年度 日本分光学会年次講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] これまでに行ってきたこと,これから行いたいこと:不安定な分子種を中心として2017

    • Author(s)
      坂本 章
    • Organizer
      平成29年度 日本分光学会年次講演会 「分光学夢シンポジウム」
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] ベンゾフェノン誘導体のアニオン種の赤外吸収スペクトルの測定と解析2017

    • Author(s)
      下村 温紗,岡島 元,坂本 章
    • Organizer
      日本化学会 第97春季年会(2017)
    • Place of Presentation
      慶應義塾大学 日吉キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] Near-infrared resonance Raman spectroscopy of electronic excited triphenylene2017

    • Author(s)
      Hajime OKAJIMA, Mika TAKATORI, Akira SAKAMOTO
    • Organizer
      日本化学会 第97春季年会(2017)
    • Place of Presentation
      慶應義塾大学 日吉キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] Coordination to divalent cations by calcium-binding proteins studied by infrared spectroscopy2017

    • Author(s)
      Masayuki Nara, Hisayuki Morii, Akira Sakamoto, Takuya Miyakawa, and Masaru Tanokura
    • Organizer
      Protein & Peptide Conference (PepCon-2017)
    • Place of Presentation
      Hilton Fukuoka Sea Hawk, Fukuoka, Japan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ラマンイメージング装置の分光電気化学測定への応用2016

    • Author(s)
      五味田 一柊,岡島 元,坂本 章
    • Organizer
      平成28年度 日本分光学会年次講演会
    • Place of Presentation
      大阪大学 豊中キャンパス
    • Related Report
      2016 Annual Research Report
  • [Presentation] Constructions of Time-Resolved Raman Spectrometers with Near-Infrared Excitation and Their Applications to Photoexcited p-Conjugated Molecules2016

    • Author(s)
      A. Sakamoto
    • Organizer
      The Fourth Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      National Taiwan University, Taipei, Taiwan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of Vibrational Circular Dichroism (VCD) Spectroscopy for Photoexcited Molecules2016

    • Author(s)
      K. Fujita, H. Okajima, A. Sakamoto
    • Organizer
      The Fourth Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      National Taiwan University, Taipei, Taiwan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Femtosecond Time-resolved Infrared Absorption Study on Photo-excited Dynamics of Regioregular Poly(3-hexylthiophene)2016

    • Author(s)
      G. Aoyama, H. Okajima, A. Sakamoto
    • Organizer
      The Fourth Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      National Taiwan University, Taipei, Taiwan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Determination of absolute configurations of polyaromatic chiral molecules by Raman optical activity (ROA) spectroscopy2016

    • Author(s)
      S. Itami, H. Okajima, S. Kubota, K. Nakano, A. Sakamoto
    • Organizer
      The Fourth Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      National Taiwan University, Taipei, Taiwan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of Raman imaging apparatus to vibrational spectroelectrochemistry2016

    • Author(s)
      I. Gomita, H. Okajima, A. Sakamoto
    • Organizer
      The Fourth Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      National Taiwan University, Taipei, Taiwan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Infrared absorption study on the radical anions of triphenylene and sumanenetrione; prototypes of planar and non-planar conjugated molecules2016

    • Author(s)
      A. Shimomura, H. Okajima, N. Takashina, S. Higashibayashi, H. Sakurai, A. Sakamoto
    • Organizer
      The Fourth Taiwan International Symposium on Raman Spectroscopy
    • Place of Presentation
      National Taiwan University, Taipei, Taiwan
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フェムト秒時間分解赤外分光法による立体規則性ポリ(3-ヘキシルチオフェン)の光励起ダイナミクス2016

    • Author(s)
      青山 元気,岡島 元,坂本 章
    • Organizer
      2016年光化学討論会
    • Place of Presentation
      東京大学 駒場第一キャンパス
    • Related Report
      2016 Annual Research Report
  • [Book] 日本工業規格 赤外分光分析通則 JIS K 0117:2016 (平成28年3月改正)2017

    • Author(s)
      川瀬 晃,坂本 章 ら (他22名)
    • Publisher
      一般財団法人日本規格協会
    • Related Report
      2016 Annual Research Report

URL: 

Published: 2016-04-26   Modified: 2018-12-17  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi