Development of Single-Molecule Devices based on Valence Tautomeric Complexes by Scanning Tunneling Microscopy

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13658
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic chemistry
• Research Institution: Kwansei Gakuin University
• Principal Investigator: Tanaka Daisuke 関西学院大学, 理工学部, 准教授 (60589399)
• Co-Investigator(Renkei-kenkyūsha): YAMADA Toyokazu 千葉大学, 大学院融合科学研究科, 准教授 (10383548)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: STM / 原子価互変異性 / 単分子膜

Outline of Final Research Achievements

Valence tautomerism (VT) is attractive property for single molecular memory devices. In this research, we observed a two dimensional periodic self-assembled monolayer of Co-VT complexes with long alkyl chains, whose cobalt center shows a thermal bistability of VT molecular interconversion in a bulk crystal. The Scanning Tunneling Microscopy (STM) observation have demonstrated the periodic structure of Co-VT complexes on highly ordered pyrolytic graphite (HOPG) at room temperature under nitrogen atmosphere. We also determined the two dimensional crystal structure of PtCl2(C8, 10bpy) (C8, 10bpy =4,4'-bis(3-octytridecyl) -2,2'bipyridine) on HOPG by STM.

Free Research Field

錯体化学