Acta Cryst. (2003). E59, o312-o313  [ doi:10.1107/S1600536803002940 ]

2,2'-Diamino-4,4'-bi-1,3-thiazole

J.-G. Liu, D.-J. Xu and C.-H. Hung

Abstract: The centrosymmetric molecule of the title compound, C₆H₆N₄S₂ (DABT), displays a trans planar configuration, except that the amino groups are inclined slightly to the bithiazole plane. The N-C bond distance of 1.309  (2)  Å within the thiazole ring is shorter than in DABT chloride [1.335  (6)  Å] and in a DABT-metal complex [1.322  (3)  Å]. The separation of 3.717  (3)  Å between parallel bithiazole rings of neighboring molecules indicates a normal van der Waals contact.

Online 14 February 2003

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