Polymerisation isomerism of tungsten(vi) oxomethoxide: new insights into the structure and reactivity of non-cluster metal oxoalkoxide aggregates

Abstract

Polymerization isomerism is potentially important for metal alkoxides as precursors of oxide materials. Here, we present this phenomenon for tungsten oxo-methoxide, reporting the molecular and crystal structure of its polymeric form [WO(OMe)₄]_∞(1), its dimeric form W₂O₂(OMe)₈(2), and a higher extent oxo-substituted by-product of the synthesis, Li₂(MeOH)₆W₁₂O₂₉(OMe)₁₆(3).