Crystal structure ofN-(4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl)-2-(thiophen-3-yl)acetamide

Abstract

The title compound, C9H8N2O2S3, crystallizes with two molecules (AandB) in the asymmetric unit. Both have similar conformations (overlay r.m.s. deviation = 0.209 Å) and are linked by an N—H...O hydrogen bond. In both molecules, the thiophene rings show orientational disorder, with occupancy factors of 0.6727 (17) and 0.3273 (17) for moleculeA, and 0.7916 (19) and 0.2084 (19) for moleculeB. The five-membered rings make an angle of 79.7 (2)° in moleculeAand an angle of 66.8 (2)° in moleculeB. In the crystal, chains of molecules running along thea-axis direction are linked by N—H...O hydrogen bonds. The interaction of adjacent chains through N—H...O hydrogen bonds leads to two types of ring structures containing four molecules and described by the graph-set motifsR44(18) andR42(14).