Dhanalakshmi G, Saravanan V, Mohanakrishnan AK, Aravindhan S. Crystal structures of 1-benzene-sulfon-yl-2-methyl-3-(4-nitro-benzoyl)-2,3-di-hydro-1
H-indole and 1-benzene-sulfon-yl-2-methyl-3-[(thio-phen-2-yl)carbon-yl]-2,3-di-hydro-1
H-indole.
Acta Crystallogr E Crystallogr Commun 2017;
73:1555-1559. [PMID:
29250380 PMCID:
PMC5730317 DOI:
10.1107/s2056989017012804]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 09/06/2017] [Indexed: 11/10/2022]
Abstract
In the title indole derivatives, C22H16N2O5S, (I) and C20H15NO3S2, (II), the sulfonyl-bound phenyl rings are almost orthogonal to the indole ring system, subtending dihedral angles of 88.33 (10) and 87.58 (16)°, respectively. In both compounds, the sulfonyl S atom has a distorted tetra-hedral geometry [O-S-O = 119.98 (9) and N-S-C = 104.01 (8)° for compound (I) and O-S-O = 120.08 (18) and N-S-C = 104.91 (14)° for compound (II)] and the sum of the bond angles at N indicates sp2 hybridization. The mol-ecules of both (I) and (II) feature intra-molecular C-H⋯O hydrogen bonds that generate S(6) ring motifs with the sulfone O atom. In the crystals, mol-ecules of (I) are linked by C-H-O hydrogen bonds, forming R44(18) ring motifs while mol-ecules of (II) are linked by C-H-O and C-H-S hydrogen bonds, forming R22(12) ring motifs. Compound (II) was refined as an inversion twin.
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