Document Details
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Document Type |
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Article In Journal |
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Document Title |
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2-[(1Z)-(9-Ethyl-9H-carbazol-3-yl)methyleneamino]-4,5,6, 7-tetrahydro-1-benzothiophene-3-carbonitrile-benzene (2/1) 2-[(1Z)-(9-Ethyl-9H-carbazol-3-yl)methyleneamino]-4,5,6, 7-tetrahydro-1-benzothiophene-3-carbonitrile-benzene (2/1) |
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Subject |
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Chemistry |
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Document Language |
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English |
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Abstract |
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In the title compound, 2C24H21N3S· C6H6, the two independent Schiff base molecules (A and B) in the asymmetric unit differ in the orientation of the tetrahydro-benzothio- phene ring system with respect to the carbazole ring system by 180° rotation about the C - C bond in the C - C=N - C linkage. The two molecules also differ in the orientation of the ethyl groups [C - N - C - C torsion angle of 90.7 (3)° in molecule A, and -79.4 (3)° in molecule B]. In molecule B, two methylene C atoms of the cyclo-hexene ring are disordered over two sites with occupancies of 0.58 (1) and 0.42 (1). The cyclo-hexene rings in both molecules adopt half-chair conformations. The dihedral angle between the thio-phene ring and the carbazole ring system is 8.07 (9)° in molecule A [3.10 (9)° in molecule B]. In the crystal structure, the independent molecules are linked into dimers by intermolecular C - H⋯N hydrogen bonds. In addition, C - H⋯π interactions are observed. |
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ISSN |
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1600-5368 |
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Journal Name |
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Acta Crystallographica Section E: Structure Reports Online |
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Volume |
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66 |
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Issue Number |
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5 |
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Publishing Year |
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1431 AH
2010 AD |
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Article Type |
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Article |
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Added Date |
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Monday, February 20, 2012 |
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Researchers
| Hoong Kun Fun | Fun, Hoong Kun | Researcher | Doctorate | hkfun@usm.my |
| JiaHao Goh | Goh, JiaHao | Researcher | Doctorate | |
| عبدالله محمد عسيري | Asiri, Abdullah Mohamed | Researcher | Doctorate | aasiri2@kau.edu.sa |
| سلمان أحمد خان | Khan, Salman A | Researcher | Doctorate | sahmad_phd@yahoo.co.in |
| خالد خان | Khan, Khalid A | Researcher | Doctorate | |
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