2,5-Bis(1,3-dithiol-2-ylidene)-1,3-dithiolane-4-thione

Abstract

The asymmetric unit of the title compound, C 9H 4S 7, contains two independent molecules, in one of which the central fivemembered ring is disordered over two orientations in a 0.924(3):0.076(3) ratio. The molecular skeleton is almost planar: the average distance of the atoms from their mean plane is 0.128(7) Å in the ordered molecule, and 0.088(5) and 0.123(2) Å in the major and minor disorder components, respectively. The ordered and disordered molecules form separate columns by stacking along the b axis. Adjacent columns interact via short S···S [3.33(2), 3.434(3), 3.444(2), 3.503(2), 3.519(3) and 3.53(4) Å] and S···H [2.814(2), 2.87(7), 2.92(2), 2.9269(18), 2.93(2), 2.94(2), 2.939(2), 2.967(2) and 2.974(1) Å] contacts.