Acta Crystallographica Section E Structure Reports Online (Impact Factor: 0.35). 01/2010; 66(Pt 5):o1071. DOI: 10.1107/S160053681001247X
Source: PubMed

ABSTRACT In the title compound, C(24)H(19)NO(4)S, the benzocarbazole ring system is planar (r.m.s. deviation = 0.016 Å) and forms a dihedral angle of 78.54 (4)° with the sulfonyl-bound phenyl ring. Intra-molecular C-H⋯O inter-actions are observed. A C(8) chain running along the b axis is formed via inter-molecular C-H⋯O hydrogen bonds. The chains are linked via weak C-H⋯ π inter-actions.

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    ABSTRACT: The asymmetric unit of the title compound, C(21)H(15)NO(3)S, contains two crystallographically independent mol-ecules. As a result of the electron-withdrawing character of the phenyl-sulfonyl groups, the N-Csp(2) bond lengths are slightly longer than the anti-cipated value of approximately 1.35 Å for N atoms with planar configurations. Both unique S atoms have a distorted tetra-hedral configuration. In each mol-ecule, the indole ring system is essentially planar (r.m.s. deviations for all non-H atoms of 0.020 and 0.023 Å). In one mol-ecule, the indole ring system makes dihedral angles of 65.7 (8) and 73.4 (8)°, respectively, with the benzene and phenyl rings [62.2 (7) and 72.1 (7)°, respectively, in the other mol-ecule].
    Acta Crystallographica Section E Structure Reports Online 04/2011; 67(Pt 4):o844. · 0.35 Impact Factor

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