2019 Fiscal Year Annual Research Report
STM-Induced Light Emission Investigation of Individual Self-Decoupled Molecules
| Project/Area Number |
18K14076
|
|---|
| Research Institution | Institute 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
|
| Keywords | self-assembly / STM / DFT / chirality / surface |
|---|
| 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.
|
