Structural variations in self-assembled monolayers of 1-pyrenehexadecanoic acid and 4,4′-bipyridyl on graphite at the liquid-solid interface

Hiroshi Uji-i, Masahito Yoshidome, Jonathan Hobley, Koji Hatanaka, Hiroshi Fukumura

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Static and dynamic structures in self-assembled monolayers containing 1-pyrenehexadecanoic acid (PHDA) at a liquid-solid interface were investigated with scanning tunneling microscopy. Uni-component adsorption layers made a specific structure having ring figures corresponding to pyrene groups, whereas the co-adsorption of PHDA and 4,4′-bipyridyl resulted in two different structures depending on their concentrations and the ambient temperature. When the concentration of 4,4′-bipyridyl was high and the temperature at around 290 K, a dynamic bistable structure was observed within a stacked row of molecules without causing any disorder to the assembly as a whole. The bistability is considered to be due to molecular desorption-adsorption process occurring at the anti-parallel configuration of two neighbouring PHDA molecules.

本文言語English
ページ(範囲)4231-4235
ページ数5
ジャーナルPhysical Chemistry Chemical Physics
5
19
DOI
出版ステータスPublished - 2003 10 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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