Synthesis and spectroscopic characterization of organiothiophoshosphoryl polyoxotungstates α-[C6H11P(S)]2Xn+W11O39(8-n)-(Xn+-P5+, Si4+, Ge4+, Ga3+)

Organothiophosphoryl polyoxotungstate derivatives alpha-C6H11P(S)](2)Xn+W11O39(8-n)-(X=P, Si, Ge, Ga) were obtained by the reactions of the monovacant alpha-[X-n+W11O39]((12-n)-)(X=P, Si, Ge, Ga) anions with electrophilic C6H11P(S)Cl-2 in acetonitrile. These new organic-inorganic hybrid anions were characterized by elemental analyses, IR, P-31 and W-183 NMR spectrometries. The six-line W-183 NMR spectrum indicates that [C6H11P(S)](2)X-n+W11O39(8-n)-(X=P, Si, Ge, Ga) anions possess true C. symmetry in acetonitrile. According to the spectroscopic observation and the chemical analyses, it is known that each of the hybrid anions consists of an alpha-[XW11O39] framework on which two equivalent C6H11P(S) groups are grafted through P-O-W bridges.