Small Reactive Sulfur-Nitrogen Compounds and Their Transition Metal Complexes

Abstract Salts containing thiazyl (SN+), dithionitronium (S2N+) and sulfur diimide (SN2- 2) ions can be used as sources for these small sulfur-nitrogen units in synthetic studies. The highly reactive molecules sulfur nitride (SN) and dinitrogen sulfide (N=N=S) are known as transients in the gas phase, and the existence of anionic species such as the radical SN2- or dithionitrite (S2N-) has been deduced from electrochemical studies. The thionitroysl group (NS) is a versatile three-electron acceptor system in transition metal complexes; it is generally coordinated as a linear terminal ligand.