One-step preparation of dithiocarboimidate ligands by addition of phenylisothiocyanate to tetrathiomolybdate

Reaction of C6H5NCS with MoS 4 2 - led to the formation of a dinuclear complex of molybdenum(V) with two dithiocarboimidate ligands, (NEt4)2[Mo2(S)2(μ-S)2(η2-S2CN(C6H5))2] · 0.5CO(CH3)2. The crystallization of 1 is systematically accompanied by the formation of 4-phenyl-3,5-diphenylimino[1,2,4]-dithiazolidine [(C6H5)3N3C2S2] (2). The two compounds have been structurally characterized by XRD and a reaction scheme is proposed.