Synthetic pathways to vanadyl organophosphonates through aqueous media

Article abstract of DOI:10.1016/S0025-5408(96)00164-X

Synthesis of vanadyl(IV) organophosphonates VORPO₃·nH₂O (with R = CH₃, C₂H₅, C₆H₅) has been investigated by reaction of VOSO₄·5H₂O + RPO₃H₂ under refluxing conditions in aqueous media. The influence of different parameters is discussed, and compounds are characterized by X-ray powder diffraction, TGA, IR, XANES, and EXAFS. For example, three crystallographic forms of VOC₆H₅PO₃·2H₂O obtained differ from each other in the location of the trans water molecule in the layered structure.