3-Methyl-5-methylsulfanyl-1,3,4-thiadiazole-2(3H)-thione

Abstract

The title compound, C4H6N2S3, has two very similar moleculesper asymmetric unit. The nine non-H atoms in each moleculeare coplanar, both having comparable r.m.s. deviations of0.002 A ˚ . The main interest in the rather simple structureresides in a survey of very weak (in some cases, borderline)non-bonding interactions of various kinds, viz. S S, C—H , – [centroid–centroid distance = 3.8958 (13) A ˚ ] andC—S [3.7271 (11) A ˚ ], which act as the major driving forcefor the arrangement of molecules in the structure. The role oflong, though highly directional, S S contacts (d > 3.60 A ˚ ),and their relevance to the stability of the structure is discussed.