Mixed ligand unsymmetrical binuclear oxomolybdenum(V) complexes

Abstract

Mixed ligand unsymmetrical binuclear oxomolybdenum(V) derivatives, Mo₂O₃[S₂P(OR)₂]₂(S₂CNR'₂ )₂ (R=Et,n-Pr,i-Pr ori-Bu; R'=Et, R=n-Pr; NR'=N(CH2)4CH2 and Mo₂O₃(S₂POGO)₂(S₂CNEt₂)₂ (G=-CH₂CMe₂-CH₂-, -CMe₂CMe₂-) have been prepared from mononuclear oxomolybdenum(IV) dialkyl (or alkylene) dithiophosphates (1 mol) with mononuclear dioxomolybdenum(VI) dithiocarbamates (1 mol). Selected complexes have also been obtained by condensing of Mo₂O₄(S₂CNEt₂)₂ (1 mol) with the corresponding dialkyl (alkylene) dithiophosphoric acids (2 mol). The complexes were characterized by elemental analyses, and an octahedral environment around molybdenums has been suggested on the basis of i.r. and n.m.r. (¹H,¹³C and ³¹P) spectral studies.