Electrochemistry and Spectroelectrochemistry of the Hexachloroiridate(III) and -(IV) Complexes in the Basic Aluminum Chloride-1-Methyl-3-ethylimidazolium Chloride Room-Temperature Ionic Liquid

I-Wen Sun, E. Haynes Ward, Charles L. Hussey, Kenneth R. Seddon, Janet E. Turp

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

In contrast to its behavior in aqueous solution, the [IrCl6]2-/ [IrCl6]3-system exhibits classical reversible, uncomplicated electrochemical behavior at glassy-carbon electrodes in the basic aluminum chloride-1-methyl-3-ethylimidazolium chloride room-temperature ionic liquid. The formal potential of this redox system in the 49.0/51.0 mol % melt was found to be 0.370 V vs. A1 in the 66.7/33.3 mol % melt. Diffusion coefficients for [IrCl6]2-and [IrCl6]3-in the former melt were 4.3 X 10-7and 3.0 X 10-7cm2s-l, respectively, at 40.0 °C. The Stokes-Einstein product for [IrCl6]2-in the ionic liquid was remarkably close to its value in aqueous solution.

Original languageEnglish
Pages (from-to)2140-2143
Number of pages4
JournalInorganic Chemistry
Volume26
Issue number13
DOIs
Publication statusPublished - 1987 Jan 1

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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