Calcium ion-Calixquinone complexes adsorbed on a silver electrode

Sun Kil Kang, One-Sun Lee, Suk Kyu Chang, Doo Soo Chung, Hasuck Kim, Taek Dong Chung

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The structures and redox-switching behavior of Ca2+/calix[4] quinone complexes on a Ag surface were investigated by reflection-absorption infrared spectroscopy (RAIRS), Monte Carlo simulation, and voltammetry. RAIRS and Monte Carlo simulation show that the carboxylate groups of calix[4]arene-triacidmonoquinone (CTAQ) and calix[4]arene-diacid-diquinone (CDAQ) are involved in not only binding with the Ca2+ ions but also spontaneous adsorption of their complexes onto the Ag surface. According to the RAIRS results, the Ca2+ ions in the complexes lie in vicinity to the quinone moieties. Monte Carlo simulation provides more detailed information about the probable conformations of the Ca2+/calix[4]quinone complexes adsorbed on the Ag surface. Voltammetric behavior is consistent with the RAIRS and Monte Carlo simulation results and shows the effect of Ca 2+ ions to the redox processes of the CTAQ- or CDAQ-modified Ag electrodes.

Original languageEnglish
Pages (from-to)19981-19985
Number of pages5
JournalJournal of Physical Chemistry C
Volume113
Issue number46
DOIs
Publication statusPublished - 22 Dec 2009
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Kang, S. K., Lee, O-S., Chang, S. K., Chung, D. S., Kim, H., & Chung, T. D. (2009). Calcium ion-Calixquinone complexes adsorbed on a silver electrode. Journal of Physical Chemistry C, 113(46), 19981-19985. https://doi.org/10.1021/jp9067262