Synthesis and crystal structure of a novel vanadium-containing tungstobismutate(III) K12[(VO)3(BiW9O33)2]·30H2O

The tris(vanadyl)-substituted tungstobismutate(III) [(VO)3(BiW9O33)2]12− anion has been synthesized by reaction of α-B[BiW9O33]9− with VOSO4 in aqueous solution. The anion is made of two α-B[BiW9O33]9− units linked by a belt of three exterior VO2+ groups into an assembly of virtual D3h symmetry. The three vanadium centers are well separated by a V⋯V distance of 5.375(4)–5.474(4) Å.