Structure and properties of the sulfur dinitride dianion

The properties of the N/sub 2/S/sup 2 -/ dianion are calculated by using Hartree-Fock-Slater and MNDO methods and are related to those of N/sub 2/S and experimental results. A locally stable NSN/sup 2 -/ species with an NSN angle of 135/sup 0/ is characterized, and a decomposition channel to N/sub 2/ + S/sup 2 -/ is identified. 10 references, 3 figures.