[V(SNC9H6)3] and [V(SNH2C6H4)2(SNHC6H4)]−, Homoleptic Vanadium( III ) Complexes with Sulfur–Nitrogen Donor Ligands, and [V(SNC5H4)3]−, the First Thiolatovanadium( II ) Complex

The sulfur and nitrogen atoms of the pyridinethiolato ligands coordinate to the central atom in the vanadium(II) complex [V(SNC5H4)03]− (1) to form a distorted octahedral geometry. In each set of neighboring ligands one S atom and one N atom are trans to each other; the chelate rings are planar. Such complexes with bifunctional ligands are important as models for vanadium centers in biomolecules.