Oxomolybdenum(III, IV and V) complexes of thiofunctional ligands

Reaction of [MoO2(acac)2] with View the MathML sourceLi2NS2S′2 (S is a thioether, S′ a thiophenolate function) yielded the compound Li7(thf)17{MoO}8 · 10thf · hexane, where {MoO}8 represents one View the MathML source[MoIVO(NS2S′2)]1, three View the MathML source[MoIIIO(NS2S′2)]- (2, linked, via the oxo group, to [Li(thf)3]+) and two View the MathML source[MoVO(S′2)2]22- (3a, linked by two [Li(thf)2]+).A mixed-valent variant of 3, View the MathML source[{MoIVO(S′2)}{MoVO(S′2)}]- (3b, with an additional[Li(thf)3]+ attached to S′), was also identified. The compounds model features pertinent to oxo-transferases containing the molybdopterin cofactor.