Abstract

This paper presents the first variable ionic strength study of the rates of intercomplex electron transfers between species wherein the electron to be exchanged is delocalized over numerous equivalent metal atoms. The complexes used were heteropoly tungstophosphates and their isomorphous heteropoly blue reduction products, the latter being class II mixed-valence species wherein the added «blue» electrons are delocalized over a dozen or more WO 6 units. Heteropoly complexes characteristically have extremely low interactions with solvent. Electron-exchange rates in solution were evaluated from 13 P NMR data

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