The effect of bending modes on the intramolecular electron-transfer rates of mixed-valence 1′,3′,1‴,3‴-tetraethyl- and 1′,2′,1‴,2‴-tetraethyl-biferrocenium triiodides

Abstract

The results of an X-ray structure determination of 1′,3′,1‴,3‴-tetraethylbiferrocenium triiodide, the effects of changing the relative positions of ethyl substituents from 1′,3′,1‴,3‴ to 1′,2′,1‴,2‴ on the intramolecular electron-transfer rates of biferrocenium salts in the solid state, and a theoretical explanation of the influence of steric factors on the electron-transfer rates are reported.