Formation of Molecular Wires by Nanospace Polymerization of a Diacetylene Derivative Induced with a Scanning Tunneling Microscope at a Solid-Liquid Interface

DOI Web Site Web Site Web Site 4 Citations 26 References
  • Nishio Satoru
    Department of Applied Chemistry, Faculty of Science and Engineering, Ritsumeikan University
  • I-i Daizo
    Department of Chemistry, Graduate School of Science, Tohoku University
  • Matsuda Hiroshi
    Department of Chemistry, Graduate School of Science, Tohoku University
  • Yoshidome Masahito
    Department of Chemistry, Graduate School of Science, Tohoku University
  • Uji-i Hiroshi
    Department of Chemistry, Graduate School of Science, Tohoku University
  • Fukumura Hiroshi
    Department of Chemistry, Graduate School of Science, Tohoku University

Search this article

Abstract

A nanospace polymerization reaction was initiated using a scanning tunneling microscope in a monolayer of a diacetylene derivative, 10, 12-nonacosadiynoic acid (NCDA), at a solid-liquid interface to obtain molecular wires. The polymerization threshold with respect to the applied voltage was 2 V, which was 1 V lower than that observed at a solid-air interface. The presence of ionic species considerably enhanced the reaction probability. At more than ±2 V, the addition of N(CH3)4ClO4 resulted in the expansion of the reaction region and the increase in reaction probability regardless of the sign of the bias voltage applied. Different from the case at the solid-air interface, polymerization at the solid-liquid interface was probably induced through the multiple vibrational excitation of NCDA by repetitive collisions with charged carriers activated by the strong electric field involved in electron avalanche.

Journal

Citations (4)*help

See more

References(26)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top