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

单个自解耦分子的 STM 诱导光发射研究

• 批准号: 18K14076
• 负责人: C Songpol
• 金额: $ 2.66万
• 依托单位: Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2018
• 资助国家: 日本
• 起止时间: 2018-04-01 至 2020-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18K14076/
• 关键词: self-assembly; STM; DFT; chirality; surface; tripod; thiol; triptycene; single molecule; TERS; luminescence

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.

对Ag（111）的自组装1,8,13-Tris（近甲基） - triptycenes（TMMT）的研究进行了研究。实验性和模拟的STM图像显示出归因于竖立的TMMT分子的三倍突出，它们将自组装成两种包装构型。对高度有序结构的偏爱表明了很大程度的分子间相互作用。 DFT计算表明，三联烯，亚甲基桥和硫醇分别负责分子间相互作用，手性和底物相互作用。这项工作揭示了三维分子之间的分子间相互作用，其中相互作用不局限于单个平面。

项目成果

A Robust Insulating Molecular Thin Film

坚固的绝缘分子薄膜

• 发表时间: 2018
• 作者: Songpol Chaunchaiyakul;Hiroshi Imada;Emiko Kazuma;Fumitaka Ishiwari;Takanori Fukushima;Yousoo Kim
• 通讯作者: Yousoo Kim

Nonplanar Stereochiral Intermolecular Interactions between Upright Molecular Precursors

直立分子前体之间的非平面立体手性分子间相互作用

• 发表时间: 2019
• 作者: Songpol Chaunchaiyakul;Chi Zhang;Hiroshi Imada;Emiko Kazuma;Fumitaka Ishiwari;Yoshiaki Shoji;Takanori Fukushima;Yousoo Kim
• 通讯作者: Yousoo Kim

ACSIN-14 & ICSPM26

ACSIN-14

• 发表时间: 2018