Wenerios Tsagkalidis, D. Rodewald, D. Rehder
May 1, 1994
Inorganica Chimica Acta
Reaction of VOCl2(thf)2 with two equivalents of the sodium salt of mercaptopyridine-N-oxide yields [VO(C5H4NOS)2] (1). 1 crystallizes in the orthorhombic space group Pbca with the following cell dimensions: a = 11.148(2), b = 14.103(2), c = 15.258(3) A, Z = 8. The molecule possesses square pyramidal geometry with a VO double bond length of 1.597(5) A and average VS and VO distances of 2.375 and 1.964 A, respectively. The vanadium atom is displaced from the best plane spanned by the four ligand donor atoms by 0.644(1) A. Reaction of 1 with SOCl2 affords the dichloro complex trans-[VCl2(C5H4NOS)2] (2).