Experimental and theoretical studies on the self-motion of a phenanthroline disk coupled with complex formation

Keita Iida, Nobuhiko J. Suematsu, Yumi Miyahara, Hiroyuki Kitahata, Masaharu Nagayama, Satoshi Nakata

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

A change in the mode of self-motion coupled with complex formation was investigated experimentally and theoretically. A 1,10-phenanthroline disk floating on water exhibited either uniform or intermittent motion (in which the disk altered between rapid motion and a resting state) depending on the concentration of Fe2+ in the aqueous phase. Since the driving force for this motion is considered to be governed by the surface concentrations of phenanthroline (phen) and [Fe(phen)3]2+, it is important to understand the relationship between the kinetics near the air/water interface and the mode of motion. We propose a mathematical model for the motion of the phenanthroline disk and discuss the validity of this model based on a comparison with the experimental results.

Original languageEnglish
Pages (from-to)1557-1563
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume12
Issue number7
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

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

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