Dalton communication. Solid-state nuclear magnetic resonance studies on the co-ordination geometry of boron in polyoxotungstates

Abstract

The co-ordination geometry of boron in derivatives of a polyoxotungstate with the Keggin structure, K₅[BW₁₂O₄₀]·11 H₂O, has been studied by solid-state magic-angle-spinning NMR spectroscopy (in tandem with Fourier-transform infrared spectroscopy) which is shown to be a sensitive tool for probing the immediate environment of ¹¹B in polyoxotungstates, yielding new information on the local symmetry.