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Acta Cryst. (2013). E69, o598-o599
[ doi:10.1107/S1600536813007873 ]

3,9-Dimethyl-2,3-dihydrospiro[carbazole-1,2'-[1,3]dithiolan]-4(9H)-one

S. Gülle, N. Çaylak Delibas, Y. Ergün and T. Hökelek

Abstract: The title compound, C16H17NOS2, consists of a carbazole skeleton with methyl and dithiolane groups as substituents. In the indole ring system, the benzene and pyrrole rings are nearly coplanar, forming a dihedral angle of 1.02 (11)°. The cyclohexenone ring has a twisted conformation, while the dithiolane ring adopts an envelope conformation with one of the CH2 C atoms at the flap. In the crystal, weak C-H...O hydrogen bonds link the molecules into supramolecular chains nearly parallel to the c axis. These hydrogen bonds together with weak C-H...[pi] interactions link the molecules into a three-dimensional supramolecular network.


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