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2019 Fiscal Year Annual Research Report

Development of quantum chemical ab initio methods for accurate simulation of exotic molecules

Publicly Offered Research

Project AreaClustering as a window on the hierarchical structure of quantum systems
Project/Area Number 19H05155
Research InstitutionYokohama City University

Principal Investigator

立川 仁典  横浜市立大学, データサイエンス学部, 教授 (00267410)

Project Period (FY) 2019-04-01 – 2021-03-31
Keywords多成分系量子化学手法 / 量子モンテカルロ法 / 経路積分法 / 陽電子化合物 / ミューオニウム化合物
Outline of Annual Research Achievements

エキゾチック分子系の高精度計算を実現するために、多成分系量子化学計算手法を高度化させる。本年度は、特に以下の研究項目を実現し、当該領域「量子クラスターで読み解く物質の階層構造」の研究推進に貢献した。
研究項目1.多成分系量子化学計算手法の高度化として、量子モンテカルロ法および経路積分法の高度化を実装し、全自由度の量子化学シミュレーションを可能とした。
研究項目2.エキゾチック分子系の大規模高精度計算を実現した。先ず、陽電子化合物の高精度計算を行った。電子と陽電子だけでなく分子振動の励起状態(原子核の量子効果)も含めた高精度計算を行い、陽電子親和力や対消滅率を定量的に算定することができた。次に、ミューオニウム化合物の高精度計算を行った。またこのようなエキゾチック分子系に対して、肥山らの内部座標を用いたガウス展開法を適用し始めた。
以上の成果により第4回(2019年度)分子科学国際学術賞を受賞すると共に、10報以上の査読付き国際誌に報告した。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

量子モンテカルロ法や経路積分法を駆使して、エキゾチック分子系に対する第一原理手法を構築・実装した。それにより、ミューオニウム化合物や陽電子化合物の高精度計算を可能とした。またこのようなエキゾチック分子系に対して、肥山らの手法を適用し始めた。以上の成果により第4回(2019年度)分子科学国際学術賞を受賞すると共に、10報の査読付き国際誌に報告した。

Strategy for Future Research Activity

量子モンテカルロ法や経路積分法のさらなる高度化を実施する。また、エキゾチック分子系に対する第一原理計算を系統的に実施する。またこのようなエキゾチック分子系に対して、肥山らの手法を適用し、結果を出していきたい。当該領域「量子クラスターで読み解く物質の階層構造」の研究推進に大きく貢献したい。

  • Research Products

    (18 results)

All 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 5 results,  Invited: 5 results) Remarks (1 results)

  • [Int'l Joint Research] チェンマイ大学/ウボンラチャタニ大学(タイ)

    • Country Name
      THAILAND
    • Counterpart Institution
      チェンマイ大学/ウボンラチャタニ大学
  • [Journal Article] Computational simulation of anion binding association mechanisms contributing toward rotation of pyrrole rings in dipyrrolyldiketone BF2 complexes2020

    • Author(s)
      Kobayashi Osamu、Kato Tomoki、Mashiko Takako、Haketa Yohei、Maeda Hiromitsu、Tachikawa Masanori
    • Journal Title

      RSC Advances

      Volume: 10 Pages: 12013~12024

    • DOI

      10.1039/C9RA09285D

    • Peer Reviewed / Open Access
  • [Journal Article] A computational examination of the electric-field-induced proton transfer along the interface hydrogen bond between proton donating and accepting self-assembled monolayers2020

    • Author(s)
      Kanematsu Yusuke、Kato Hiroyuki S.、Yoshimoto Shinya、Ueda Akira、Yamamoto Susumu、Mori Hatsumi、Yoshinobu Jun、Matsuda Iwao、Tachikawa Masanori
    • Journal Title

      Chemical Physics Letters

      Volume: 741 Pages: 137091~137091

    • DOI

      10.1016/j.cplett.2020.137091

    • Peer Reviewed
  • [Journal Article] Nuclear quantum and H/D isotope effects on three‐centered bonding diborane: Path integral molecular dynamics simulations2020

    • Author(s)
      Daengngern Rathawat、Kobayashi Osamu、Kungwan Nawee、Ngaojampa Chanisorn、Tachikawa Masanori
    • Journal Title

      International Journal of Quantum Chemistry

      Volume: 120 Pages: -

    • DOI

      10.1002/qua.26179

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantum dynamics calculation of the annihilation spectrum for positron?proline scattering2019

    • Author(s)
      Sugiura Yutaro、Suzuki Kento、Koido Shoichi、Takayanagi Toshiyuki、Kita Yukiumi、Tachikawa Masanori
    • Journal Title

      Computational and Theoretical Chemistry

      Volume: 1147 Pages: 1~7

    • DOI

      10.1016/j.comptc.2018.11.013

    • Peer Reviewed
  • [Journal Article] Hydration Effect on Positron Binding Ability of Proline: Positron Attachment Induces Proton-Transfer To Form Zwitterionic Structure2019

    • Author(s)
      Suzuki Kento、Sugiura Yutaro、Takayanagi Toshiyuki、Kita Yukiumi、Tachikawa Masanori
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 123 Pages: 1217~1224

    • DOI

      10.1021/acs.jpca.8b11653

  • [Journal Article] Theoretical Study on Hydrogen-Tritium Exchange Reactions between Several Organic and HTO Molecules: A Multicomponent QM Study2019

    • Author(s)
      Ishibashi Rina、Tachikawa Masanori、Udagawa Taro
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 92 Pages: 592~599

    • DOI

      10.1246/bcsj.20180308

    • Peer Reviewed
  • [Journal Article] Molecular Dynamics Study on Dynamical Features of Reorganization Process for Nanocapsule Formed with Gear-Shaped Amphiphile Molecules2019

    • Author(s)
      Mashiko Takako、Hiraoka Shuichi、Nagashima Umpei、Tachikawa Masanori
    • Journal Title

      The Journal of Physical Chemistry B

      Volume: 123 Pages: 5176~5180

    • DOI

      10.1021/acs.jpcb.9b02156

  • [Journal Article] Positron binding to hydrocarbon molecules: calculation using the positron?electron correlation polarization potential2019

    • Author(s)
      Sugiura Yutaro、Takayanagi Toshiyuki、Kita Yukiumi、Tachikawa Masanori
    • Journal Title

      The European Physical Journal D

      Volume: 73 Pages: 162-1~162-10

    • DOI

      10.1140/epjd/e2019-100147-y

    • Peer Reviewed
  • [Journal Article] Quantum Stabilization of the Frustrated Hydrogen Bonding Structure in the Hydrogen Fluoride Trimer2019

    • Author(s)
      Io Aiko、Kawatsu Tsutomu、Tachikawa Masanori
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 123 Pages: 7950~7955

    • DOI

      10.1021/acs.jpca.9b04407

    • Peer Reviewed
  • [Journal Article] Polarizability and isotope effects on dispersion interactions in water2019

    • Author(s)
      Zhan Yi-Yang、Jiang Qi-Chun、Ishii Kentaro、Koide Takuya、Kobayashi Osamu、Kojima Tatsuo、Takahashi Satoshi、Tachikawa Masanori、Uchiyama Susumu、Hiraoka Shuichi
    • Journal Title

      Communications Chemistry

      Volume: 2 Pages: 1-6

    • DOI

      10.1038/s42004-019-0242-0

    • Peer Reviewed
  • [Journal Article] One-Dimensional Fullerene/Porphyrin Cocrystals: Near-Infrared Light Sensing through Component Interactions2019

    • Author(s)
      Wakahara Takatsugu、Nagaoka Kahori、Nakagawa Akari、Hirata Chika、Matsushita Yoshitaka、Miyazawa Kun’ichi、Ito Osamu、Wada Yoshiki、Takagi Makito、Ishimoto Takayoshi、Tachikawa Masanori、Tsukagoshi Kazuhito
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 12 Pages: 2878~2883

    • DOI

      10.1021/acsami.9b18784

    • Peer Reviewed
  • [Presentation] Theoretical study on substituent and solvent effects for nanocube formed with gear-shaped amphiphile molecules2019

    • Author(s)
      Masanori Tachikawa
    • Organizer
      THAILAND-JAPAN Symposium in Chemistry
    • Int'l Joint Research / Invited
  • [Presentation] Ab initio study of the effect of molecular vibrations on the positron-binding to polyatomic molecules2019

    • Author(s)
      Masanori Tachikawa
    • Organizer
      The 23rd International Annual Symposium on Computational Science and Engineering (ANSCSE23)
    • Int'l Joint Research / Invited
  • [Presentation] Path integral simulation for accurate calculation of hyperfine coupling constants of hydrogenated and muoniated molecules2019

    • Author(s)
      Masanori Tachikawa
    • Organizer
      Isotopes 2019
    • Int'l Joint Research / Invited
  • [Presentation] Ab initio study of the effect of molecular vibrations on the positron-binding to polyatomic molecules2019

    • Author(s)
      Masanori Tachikawa
    • Organizer
      15th International Workshop on Slow Positron Beam Techniques & Applications (SLOPOS-15)
    • Int'l Joint Research / Invited
  • [Presentation] Path integral simulation for accurate calculation of hyperfine coupling constants of muoniated molecules2019

    • Author(s)
      Masanori Tachikawa
    • Organizer
      Ninth Conference of the Asia-Pacific Association of Theoretical and Computational Chemists (APATCC2019)
    • Int'l Joint Research / Invited
  • [Remarks] 横浜市立大学量子物理化学研究室(立川・石元・北グループ)

    • URL

      http://www-user.yokohama-cu.ac.jp/~tachi/index.html

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Published: 2021-01-27  

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