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.