Acta Cryst. (2009). E65, o595-o596  [ doi:10.1107/S1600536809006035 ]

3,3-Ethylenedithio-3,3a,4,5,10,10b-hexahydro-2H-furo[2,3-a]carbazole

N. Uludag, A. Öztürk, T. Hökelek and Ü. I. Erdogan

Abstract: The title compound, C₁₆H₁₇NOS₂, consists of a carbazole skeleton with tetrahydrofuran and dithiolane rings. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of 1.57 (15)°. The cyclohexenone and tetrahydrofuran rings have envelope conformations, while the dithiolane ring adopts a twist conformation. In the crystal structure, pairs of weak intermolecular N-HS hydrogen bonds link the molecules into centrosymmetric dimers with R₂²(16) ring motifs. Weak C-H interactions may further stabilize the structure.

Online 25 February 2009

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