Interconversion of Polyoxometallates

Abstract

The interface between the chemistry of solid-state lattices and discrete cluster molecules is becoming less sharply defined as parallels emerge1 between the principles which determine the structural features of the two classes. The advantages of viewing cluster molecules as fragments of close-packed arrays, rather than as assemblies of atoms joined by directed bonds, is one interesting aspect.lb, c One of the “oldest” classes of metal clusters is the polyoxometallates, and interest in their chemistry is sustained by their complex (and incompletely understood) structural and reactivity patterns.2 Interconversion of these large anions in solution is an intriguing feature of their chemistry, 3 ..