6-Bromo-2-[(E)-thiophen-2-ylmethylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one
نویسندگان
چکیده
In the title compound, C(17)H(12)BrNOS, the cyclo-hexene ring deviates only slightly from planarity (r.m.s. deviation for non-H atoms = 0.047 Å). In the crystal, the mol-ecules are linked into centro-symmetric R(2) (2)(10) dimers via pairs of N-H⋯O hydrogen bonds. The thio-phene ring is disordered over two positions rotated by 180° and with a site-occupation factor of 0.843 (4) for the major occupied site.
منابع مشابه
(E)-6-Chloro-2-(furan-2-ylmethylidene)-2,3,4,9-tetrahydro-1H-carbazol-1-one
In the title compound, C(17)H(12)ClNO(2), the carbazole unit is nearly planar [maximum deviation = 0.052 (1) Å]. The pyrrole ring makes dihedral angles of 1.92 (8) and 4.71 (11)° with the benzene and furan rings, respectively. Inter-molecular N-H⋯O hydrogen bonds form R(2) (2)(10) rings in the crystal structure.
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Mol-ecules of the title compound, C(21)H(16)BrNO, are linked through pairs of N-H⋯O inter-molecular hydrogen bonds into centrosymmetric R(2) (2)(10) dimers. One of the C atoms of the cyclohex-2-enone ring is disordered with refined occupancies of 0.61 (2) and 0.39 (2).
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In the title mol-ecule, C(18)H(15)NO(2), the carbazole unit is not planar [maximum deviation from mean plane = 0.236 (2) Å]. The pyrrole ring makes dihedral angles of 1.21 (10) and 16.74 (12)° with the benzene and the furan rings, respectively. The cyclo-hexene ring adopts a half-chair conformation. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(10) l...
متن کاملCrystal structure of (E)-2-(furan-2-ylmethylidene)-2,3,4,9-tetrahydro-1H-carbazol-1-one
The title compound, C17H13NO2, crystallizes with two conformationally very similar independent mol-ecules (A and B) in the asymmetric unit. In the crystal, the individual mol-ecules are linked by pairs of N-H⋯O hydrogen bonds forming A-A and B-B inversion dimers, with R22(10) rings. They stack alternately up the a-axis direction and are linked by C-H⋯π inter-actions, forming sheets parallel to ...
متن کامل2-(6-Methyl-2,3,4,9-tetrahydro-1H-carbazol-1-ylidene)propanedinitrile
In the title compound, C(16)H(13)N(3), the cyclo-hexene ring adopts a sofa conformation. An intra-molecular N-H⋯N hydrogen bond generates an S(7) ring motif. In the crystal, the mol-ecules are linked by pairs of N-H⋯N inter-actions, forming centrosymmetric dimers with an R(2) (2)(14) motif.
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