research papers
Crystal structure analysis of [(VB1)2DMFHPMo12O40·5DMF] [VB1 = vitamin B1 (thiamine chloride), DMF = N,N-dimethylformamide] indicates that two sets of PO4 tetrahedra are formed around the central P atom. The PO4 tetrahedra and MoO6 octahedra are disordered in the heteropolyanion.