Research Article: 6-Methyl-2,3,4,9-tetra­hydro-1H-carbazole-1-thione

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.

Partial Text

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 ▶).




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