Abstract
μ-Oxobis[oxobis(O,O′-dialkyl dithiophosphato)- molybdenum(V)], Mo 2O 3[S 2P(OR) 2] 4 (where R= Me, Et, Pr n, Pr i, Bu i, Ph) and μ-oxobis [oxobis( O, O′- alkylene dithiophosphato)molybdenum(V)], Mo 2O 3- [S 2 POGO ] 4 (where G= -CH 2CMe 2CH 2-, -CMe 2- CMe 2-, and -CHMeCHMe -) have been synthesized by the reactions of MoO 2(acac) 2 (acac=acetyl- acetone) with O,O′-dialkyl or alkylene dithiophosphoric acids. The reduction of molybdenum(VI) to molybdenum(V) appears to be quite facile in these reactions. The complexes have been characterized on the basis of elemental analyses and magnetic studies. Octahedral environment around molybdenums with chelating dithiophosphate moieties and anti terminal oxygens has been deduced on the basis of the IR and NMR ( 1H, 13C, 31P) spectral studies.
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