Journal article

ONE-ELECTRON REDOX POTENTIALS AND RATE OF ELECTRON-TRANSFER IN AQUEOUS MICELLAR SOLUTION - PARTIALLY SOLUBILIZED QUINONES

M ALMGREN, F GRIESER, JK THOMAS

JOURNAL OF PHYSICAL CHEMISTRY | AMER CHEMICAL SOC | Published : 1979

Abstract

The electron transfer equilibrium between AQS/AQS- and DQ/DQ- (where AQS is sodium 9,10-anthraquinone-2-sulfonate and DQ, duroquinone) has been studied by pulse radiolysis in aqueous micellar solutions of sodium lauryl sulfate. The equilibrium constant is changed as would be expected if AQS, AQS-, and DQ- were all mainly in the aqueous solution, and DQ distributed between the micelles and the aqueous phase with a distribution constant of KD/N = 150 M-1, in agreement with the independently determined value of this constant. The kinetics of the equilibration show, however, that electron transfer at the micelle surface is important, indicating that also AQS and DQ- are associated with the micel..

View full abstract

University of Melbourne Researchers