Facets of early transition metal-sulfur chemistry: metal-sulfur ligand redox, induced internal electron transfer, and the reactions of metal-sulfur complexes with alkynes.

Metal-sulfur ligand redox interplay, induced internal electron transfer reactions, and the generation of dithiolene and organosulfur ligands in the reactions of metal-sulfur compounds with alkynes are important and useful facets of early transition metal-sulfur chemistry. This review focuses on developments in these areas over the past 30 years.