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STM-Induced Light Emission Investigation of Individual Self-Decoupled Molecules

Research Project

Project/Area Number 18K14076
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 28010:Nanometer-scale chemistry-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

C Songpol  国立研究開発法人理化学研究所, 開拓研究本部, 特別研究員 (90802984)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Discontinued (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsself-assembly / STM / DFT / chirality / surface / tripod / thiol / triptycene / single molecule / TERS / luminescence
Outline of Annual Research Achievements

A study of self-assembled 1,8,13-tris(mercaptomethyl)-triptycenes (TMMT) on Ag(111) was carried out. Experimental and simulated STM images showed a threefold protrusion attributable to the upright oriented TMMT molecule, which self-assembles into two packing configurations. Preference of highly ordered structures suggests a substantial degree of intermolecular interactions. DFT calculations reveal that triptycenes, methylene bridges, and thiols are responsible for the intermolecular interaction, chirality, and substrate interaction respectively. This work reveals intermolecular interactions between three-dimensional molecules, in which the interacting forces are not confined to a single plane.

Report

(2 results)
  • 2019 Annual Research Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2019 2018

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Funded Workshop (1 results)

  • [Journal Article] Self-Assembly Growth of an Upright Molecular Precursor with a Rigid Framework2019

    • Author(s)
      Chaunchaiyakul Songpol、Zhang Chi、Imada Hiroshi、Kazuma Emiko、Ishiwari Fumitaka、Shoji Yoshiaki、Fukushima Takanori、Kim Yousoo
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 123 Issue: 51 Pages: 31272-31278

    • DOI

      10.1021/acs.jpcc.9b09948

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Nonplanar Stereochiral Intermolecular Interactions between Upright Molecular Precursors2019

    • Author(s)
      Songpol Chaunchaiyakul, Chi Zhang, Hiroshi Imada, Emiko Kazuma, Fumitaka Ishiwari, Yoshiaki Shoji, Takanori Fukushima, Yousoo Kim
    • Organizer
      ICSPM27
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Robust Insulating Molecular Thin Film2018

    • Author(s)
      Songpol Chaunchaiyakul, Hiroshi Imada, Emiko Kazuma, Fumitaka Ishiwari, Takanori Fukushima, Yousoo Kim
    • Organizer
      ACSIN-14 & ICSPM26
    • Related Report
      2018 Research-status Report
  • [Funded Workshop] ACSIN-14 & ICSPM262018

    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2021-01-27  

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