Date Published: July 01, 2011
Publisher: International Union of Crystallography
Author(s): R. Archana, K. Prabakaran, K. J. Rajendra Prasad, A. Thiruvalluvar, R. J. Butcher.
In the title molecule, C13H13NS, the dihedral angle between the benzene ring and the fused pyrrole ring is 0.71 (8)° and the cyclohexene ring is in an envelope form. The (CH2)3 atoms of the cyclohexene ring are disordered over two positions; the site-occupancy factor for the major component refined to 0.862 (4). In the crystal, intermolecular N—H⋯S hydrogen bonds lead to the formation of centrosymmetric aggregates via an R22(10) ring.
For the synthesis of fused carbazole nuclei, see: Pelly et al. (2005 ▶). For heterocycle-annulated tetra-, penta- and hexacyclic carbazole derivatives, see: Chattopadhyay et al. (2006 ▶). For the preparation of 1-oxo compounds via their corresponding hydrazones, see: Rajendra Prasad & Vijayalakshmi (1994 ▶). For related structures, see: Archana et al. (2010 ▶); Thomas Gunaseelan et al. (2009 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶).