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1 2005

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Synthesis and Characterization of O,O -Alkylenedithiophosphato Complexes of vanadium(V)

Kumar A., Pandey S.

Polish Journal of Chemistry

2005

Vol. 79 / nr 6

951-957

Reactions of vanadiumoxytrichloride, VOCl3, with ammonium salts of O,O'-alkylenedithiophosphoric acid, [OGOPS2NH4], in 1:3 molar ratio resulted in less common seven coordinated complexes of the type [VO(S2POGO)3] and the reactions of 2-chloro-2-oxo-1,3-dioxavanadacyclopentane and -vanadacyclohexane, [OG'OVOCl] (whereG' = -CH2CH2- or -CH2CH2CH2-), in equimolar ratio yielded compounds corresponding to [OG'OVOS2POGO] (where G = -CMe2CMe2-, -CH2CMe2CH2- or -CH2CEt2CH2-). These complexes have been characterized by elemental analyses, molecular weight determination and spectral studies like IR and NMR (1H, 13C and 31P), which indicate bidentate linkages of dithiophosphate moieties leading to pentagonal bipyramidal and square bipyramidal geometry around the vanadium(V) atom.