LAUSR

Abstract Ion transfer reaction at the water (W)|low dielectric constant organic solution (O) interface was investigated using cyclic voltammetry with a micro-interface electrolytic cell. Organic solvents used in this work were benzene, anisole and chloroform, in addition to the previously reported toluene. The transfer reactions of quaternary ammonium ions and anions across the W|low dielectric constant O interface were found to be reversible. Formal potentials for ion transfer from W to benzene, anisole, chloroform and toluene, Δ benzene W φ 0 ’ , Δ anisole W φ 0 ’ , Δ chloroform W φ 0 ’ and Δ toluene W φ 0 ’ were evaluated, and linear correlations were observed between these formal potentials and the standard potential reported at the W|1,2-dichloroethane interface, Δ DCE W φ 0 . While plots for cations and anions fall on different straight lines between Δ benzene W φ 0 ’ and Δ DCE W φ 0 , Δ anisole W φ 0 ’ and Δ DCE W φ 0 , or Δ toluene W φ 0 ’ and Δ DCE W φ 0 , Δ chloroform W φ 0 ’ for cations and anions and Δ DCE W φ 0 appeared on the same straight line.