The asymmetric unit of the title compound, C19H16N2O5S, contains four independent mol-ecules (A, B, C and D), with two mol-ecules (B and D) displaying disorder in their methyl-sulfanyl groups [occupancy ratios of 0.797 (11):0.203 (11) and 0.85 (2):0.15 (2)]. The nitro groups are twisted slightly out of the planes of the 2-pyrroline rings to which they are bonded with dihedral angles of 10.17 (1), 8.01 (1), 9.44 (1) and 8.87 (1)° in mol-ecules A, B, C and D, respectively. The 2-pyrroline rings are almost orthogonal to the attached tolyl rings, forming dihedral angles of 73.44 (1), 81.21 (1), 88.18 (8) and 73.94 (1)° for mol-ecules A, B, C and D, respectively. A weak intra-molecular O-H⋯O inter-action is observed in mol-ecules B and C. The two hy-droxy groups in each mol-ecule are involved in inter-molecular O-H⋯O hydrogen bonding. In the crystal, mol-ecules are connected via O-H⋯O and C-H⋯O hydrogen bonds, forming a complex three-dimensional network.

DOI: 10.1107/S1600536814002712

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@inproceedings{Nagalakshmi20143aR8bR3a8bDihydroxy14methylphe, title={(3aR*,8bR*)-3a,8b-Dihy­droxy-1-(4-methyl­phen­yl)-2-methyl­sulfanyl-3-nitro-1,8b-di­hydro­indeno­[1,2-b]pyrrol-4(3aH)-one}, author={R. A. Nagalakshmi and Jayaraman Suresh and R. Ranjith Kumar and Veerappan Jeyachandran and Pratap Lakshman}, booktitle={Acta crystallographica. Section E, Structure reports online}, year={2014} }