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

Nesimi Uludağ,Aslı Öztürk,Tuncer Hökelek,Ümit Işık Erdoğan

doi:10.1107/s1600536809006035

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https://doi.org/10.1107/s1600536809006035

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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—H⋯S hydrogen bonds link the molecules into centrosymmetric dimers with R 2 2(16) ring motifs. Weak C—H⋯π interactions may further stabilize the structure.

Highlights

The title compound, C16H17NOS2, consists of a carbazole skeleton with tetrahydrofuran and dithiolane rings
H atoms treated by a mixture of independent and constrained refinement max = 0.24 e Å3
The authors acknowledge the purchase of the CAD-4 diffractometer under grant DPT/TBAG1 of the Scientific and Technical Research Council of Turkey

Summary

Ümit Işık Erdoğanc*

H atoms treated by a mixture of independent and constrained refinement max = 0.24 e Å3. Min = 0.23 e Å3 a Department of Chemistry, Faculty of Technical Education, Mersin University, 33500. Turkey, bDepartment of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey, and cDepartment of Chemistry Education, Faculty of Education, Hacettepe University, 06800 Beytepe, Ankara, Turkey. 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. Pairs of weak intermolecular N—H S hydrogen bonds link the molecules into centrosymmetric dimers with R22(16) ring motifs. Weak C—H interactions may further stabilize the structure

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