Formations and electrochemical behavior of mononuclear and binuclear molybdenum dithiolene complexes with nitrosyl ligands: Evidence for the formation of a coordinatively unsaturated species [Cp∗Mo(NO)(dithiolene)]

The reaction of [Cp∗Mo(NO)(CO)2] with S8 and DMAD gave the molybdenum dithiolene complexes [Cp∗Mo(NO)(S2C2Z2)(C2Z2)] (1, Z = COOMe), [Cp∗Mo(NO)(S2C2Z2)]2 (2), [Cp∗2Mo2(NO)2S2(S2C2Z2)] (3) and [Cp∗Mo(NO)S2]2 (4).The reduction of complexes 1 and 2 formed the monomeric complex [Cp∗Mo(NO)(S2C2Z2)]− (X−).When the anion X− was oxidized, the oxidant reformed complex 2.