A. M. Bernardino, Luiz C. S. Pinheiro, E. Tiekink
Jun 20, 2012
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
In the title compound, C16H13ClN4S, the thienopyridine fused-ring system is nearly planar (r.m.s. deviation = 0.0333 Å) and forms a dihedral angle of 4.4 (3)° with the attached dihydroimidazole ring (r.m.s. deviation = 0.0429 Å) allowing for the formation of an intramolecular (exocyclic amine)N—H⋯N(imine) hydrogen bond. The benzene rings of the disordered (50:50) –N(H)—C6H4Cl residue form dihedral angles of 59.1 (3) and 50.59 (15)° with the fused ring system. In the crystal, (imidazole amine)N—H⋯N(pyridine) hydrogen bonds lead to a supramolecular helical chain along the b axis. The chains assemble into layers (ab plane) with inter-digitation of the chlorobenzene rings which results in weak C—H⋯Cl interactions in the c-axis direction.