Application of the Marcus theory to the electron transfer reaction between benzylthioacetic acid and tris(1,10-phenanthroline)iron(III) perchlorate

摘要

The electron transfer (ET) reaction between benzylthioacetic acid (BTAA) and tris(1,10-phenanthroline)iron(III) perchlorate resulted in the formation of benzylsulfinylacetic acid. The reaction is first order with respect to both BTAA and [Fe(phen)3]3+ and is retarded by hydrogen ion. The ET reaction is studied in 50 % aqueous methanol medium. The Marcus theory is successfully applied to the present redox system and this supports the operation of single electron transfer in the rate controlling step of the reaction.