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Synthesis mechanism of metal clusters studied by gas-phase spectroscopy

Research Project

Project/Area Number 19K15507
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionHiroshima University

Principal Investigator

Muramatsu Satoru  広島大学, 先進理工系科学研究科(理), 助教 (40837796)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords金属クラスター / 気相分光 / 極低温分光 / エレクトロスプレーイオン化 / イオントラップ / 飛行時間型質量分析 / 配位子保護金属クラスター / 紫外光解離分光 / 極低温イオントラップ / 振電バンド / 八極子イオンガイド / 高電圧パルス電源 / 光解離分光 / 極低温
Outline of Research at the Start

配位子によって表面保護された金属クラスターは、特定の構成原子数(サイズ)からなる種のみを選択的に湿式合成することが可能なため、近年、新たな触媒やナノ材料の機能中心として注目を集めている。しかし、合成中の系の複雑さに起因して、その合成メカニズムを解明することは困難である。本研究では、質量分析による中間体選別技術を組み合わせた先端的な気相分光を活用することで、前駆体錯体がクラスターに成長する初期過程や、最終生成物へと特異的にサイズ収束する過程に形成される中間体を気相中に選別し、その幾何・電子構造を分光学的に決定することを目指す。

Outline of Final Research Achievements

With the ultimate goal of elucidating the synthesis mechanism of ligand-protected metal clusters, we have developed a novel apparatus for gas-phase spectroscopy of key-intermediates formed in the synthetic systems. During the project period, an apparatus consisting of an electrospray ion source, an octupole ion guide, a cryogenic quadrupole ion trap, and a time-of-flight mass spectrometer has been developed. By using the apparatus, photodissociation spectroscopy under the cryogenic gas-phase condition was achieved for test samples.

Academic Significance and Societal Importance of the Research Achievements

本研究を通して開発した新規装置で,金属クラスターの湿式合成系中に形成される鍵中間体の構造を明らかにすることができれば,これまで半ばブラックボックスとされてきた複雑な合成経路の解明へとつながる。また,本分光装置は広い汎用性を有しており,これまで気相分光法の手が及んでこなかった(金属クラスター系に限らない)種々の分子イオン種の幾何・電子構造の探究へと研究が展開していくことが期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (22 results)

All 2022 2021 2020 2019

All Journal Article (13 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] New aspect of photophysics of 7,7,8,8-tetracyanoquinodimethane and its solvated complexes: intra- vs. inter-molecular charge-transfer2021

    • Author(s)
      Muramatsu Satoru、Chaki Nobumasa、Kinoshita Shin-nosuke、Inokuchi Yoshiya、Abe Manabu、Iimori Toshifumi、Ebata Takayuki
    • Journal Title

      RSC Advances

      Volume: 11 Issue: 36 Pages: 22381-22389

    • DOI

      10.1039/d1ra01430g

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural Investigation of Photochemical Intermediates in Solution by Cold UV Spectroscopy in the Gas Phase: Photosubstitution of Dicyanobenzenes by Allylsilanes2021

    • Author(s)
      Kitamura Yuma、Muramatsu Satoru、Abe Manabu、Inokuchi Yoshiya
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 125 Issue: 28 Pages: 6238-6245

    • DOI

      10.1021/acs.jpca.1c04807

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gas-Phase UV Spectroscopy of Chemical Intermediates Produced in Solution: Oxidation Reactions of Phenylhydrazines by DDQ2021

    • Author(s)
      Shiori Machida, Motoki Kida, Satoru Muramatsu, Takehiro Hirao, Takeharu Haino, Yoshiya Inokuchi
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 125 Issue: 31 Pages: 6697-6702

    • DOI

      10.1021/acs.jpca.1c04669

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spherand complexes with Li+ and Na+ ions in the gas phase: encapsulation structure and characteristic unimolecular dissociation2021

    • Author(s)
      Kida Motoki、Wada Kanako、Muramatsu Satoru、Shang Rong、Yamamoto Yohsuke、Inokuchi Yoshiya
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 23 Issue: 44 Pages: 25029-25037

    • DOI

      10.1039/d1cp03336k

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conformation of Benzo-12-Crown-4 Complexes with Ammonium Ions Investigated by Cold Gas-Phase Spectroscopy2021

    • Author(s)
      Goda Ryosuke、Kanazawa Saya、Machida Shiori、Muramatsu Satoru、Inokuchi Yoshiya
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 125 Issue: 48 Pages: 10410-10418

    • DOI

      10.1021/acs.jpca.1c09091

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 極低温気相分光で紐解く超分子相互作用:赤外分光の例を中心に2021

    • Author(s)
      村松悟、井口佳哉
    • Journal Title

      ナノ学会会報

      Volume: 20 Pages: 9-13

    • NAID

      40022747916

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 極低温イオントラップで拓く気相分子分光学2021

    • Author(s)
      村松悟
    • Journal Title

      化学と工業

      Volume: 74 Pages: 220-221

    • Related Report
      2020 Research-status Report
  • [Journal Article] Induced Fit of Crown Cavity to Ammonium Ion Guests and Photoinduced Intracavity Reactions: Cold Gas-Phase Spectroscopy of Dibenzo-18-Crown-6 Complexes with NH4+, CH3NH3+, and CH3CH2NH3+2020

    • Author(s)
      Kubo Mayuko、Kida Motoki、Muramatsu Satoru、Inokuchi Yoshiya
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 124 Issue: 16 Pages: 3228-3241

    • DOI

      10.1021/acs.jpca.0c02341

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electronic States and Nonradiative Decay of Cold Gas-Phase Cinnamic Acid Derivatives Studied by Laser Spectroscopy with a Laser-Ablation Technique2020

    • Author(s)
      Iida Yuji、Kinoshita Shin-nosuke、Kenjo Seiya、Muramatsu Satoru、Inokuchi Yoshiya、Zhu Chaoyuan、Ebata Takayuki
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 124 Issue: 27 Pages: 5580-5589

    • DOI

      10.1021/acs.jpca.0c03646

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Conformation of K+(Crown Ether) Complexes Revealed by Ion Mobility-Mass Spectrometry and Ultraviolet Spectroscopy2020

    • Author(s)
      Tainaka Sota、Ujihira Tomoyuki、Kubo Mayuko、Kida Motoki、Shimoyama Daisuke、Muramatsu Satoru、Abe Manabu、Haino Takeharu、Ebata Takayuki、Misaizu Fuminori、Ohshimo Keijiro、Inokuchi Yoshiya
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 124 Issue: 48 Pages: 9980-9990

    • DOI

      10.1021/acs.jpca.0c09068

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electronic State and Photophysics of 2-Ethylhexyl-4-methoxycinnamate as UV-B Sunscreen under Jet-Cooled Condition2020

    • Author(s)
      Muramatsu Satoru、Nakayama Shingo、Kinoshita Shin-nosuke、Onitsuka Yuuki、Kohguchi Hiroshi、Inokuchi Yoshiya、Zhu Chaoyuan、Ebata Takayuki
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 124 Issue: 7 Pages: 1272-1278

    • DOI

      10.1021/acs.jpca.9b11893

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Conformation of alkali metal ion-calix[4]arene complexes investigated by IR spectroscopy in the gas phase2019

    • Author(s)
      Wada Kozue、Kida Motoki、Muramatsu Satoru、Ebata Takayuki、Inokuchi Yoshiya
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 21 Issue: 31 Pages: 17082-17086

    • DOI

      10.1039/c9cp03194d

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Geometric and Electronic Structures of Ag+(benzo-18-crown-6), Ag+(dibenzo-18-crown-6), and Ag+(dibenzo-15-crown-5) Complexes Investigated by Cold Gas-Phase Spectroscopy2019

    • Author(s)
      Kitamura Yuma、Muramatsu Satoru、Kida Motoki、Ebata Takayuki、Inokuchi Yoshiya
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 123 Issue: 42 Pages: 9185-9192

    • DOI

      10.1021/acs.jpca.9b06991

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 気相分光による溶液内化学反応機構の解明に向けて:中間体の気相単離と質量選別分光2022

    • Author(s)
      村松悟
    • Organizer
      一般社団法人レーザー学会学術講演会第42回年次大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 気相極低温分光で見るホストゲスト相互作用:超分子の構造と機能の解明に向けて2022

    • Author(s)
      村松悟
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Gas-Phase Characterization of Hypervalent Carbon Compounds: Penta- versus Tetra-Coordinated Isomers2021

    • Author(s)
      Satoru Muramatsu
    • Organizer
      The 29th International Symposium on Molecular Beams (ISMB2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 超原子価5配位炭素化合物の気相中における構造と安定性:光解離分光とイオン移動度質量分析2021

    • Author(s)
      村松悟、大下慶次郎、Yuan Shi、美齊津文典、山本陽介、井口佳哉
    • Organizer
      第15回分子科学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Cold gas-phase spectroscopy: a case study of hypervalent carbon compounds2021

    • Author(s)
      Satoru Muramatsu
    • Organizer
      The 18th Nano Bio Info Chemistry Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Structural characterization of hypervalent carbon compounds in the gas phase: penta-versus tetra-coordinated isomers2021

    • Author(s)
      Satoru Muramatsu、Keijiro Ohshimo、Motoki Kida、Yuan Shi、Fuminori Misaizu、Yohsuke Yamamoto、Yoshiya Inokuchi
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Penta-coordinated hypervalent carbon compounds in the gas-phase: photodissociation spectroscopy and ion mobility spectrometry2020

    • Author(s)
      村松悟、大下慶次郎、木田基、Yuan Shi、美齊津文典、山本陽介、井口佳哉
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Structural characterization of hypervalent penta-coordinated carbon compounds by photodissociation spectroscopy and ion mobility mass spectrometry2020

    • Author(s)
      村松悟、大下慶次郎、木田基、Yuan Shi、美齊津文典、山本陽介、井口佳哉
    • Organizer
      第68回質量分析総合討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] SN2遷移状態構造を有する超原子価5配位炭素化合物の気相光解離分光2019

    • Author(s)
      村松悟,木田基,Yuan Shi,山本陽介,井口佳哉
    • Organizer
      第13回分子科学討論会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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