organic compounds
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The asymmetric unit of the title compound, C13H18N2O3S, contains two molecules with similar conformations. In both molecules, the cyclohexyl rings adopt chair conformations, with the attached N atom in an equatorial orientation and an intramolecular N—HO hydrogen bond generates an S(7) ring. In the crystal, N—HO hydrogen bonds link the molecules and a C—HO hydrogen bond is also observed. The crystal studied was a racemic twin.
organic compounds
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In the title compound, C10H9NO5S·0.5H2O, two geometrically different organic molecules are present. The benzene rings and the carboxylate groups are oriented at dihedral angles of 13.44 (4) and 21.15 (18)°. In both molecules, an intramolecular O—HO hydrogen bond generates an S(6) ring. In the crystal, both moleucles form inversion dimers linked by pairs of O—HO hydrogen bonds to generate R22(8) loops. The dimers are consolidated into chains extending along [100] by bridging O—HO hydrogen bonds from the water molecule. A weak C—HO hydrogen bond also occurs.
organic compounds
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In the title compound, C15H15N5O4S2, the dihedral angles between the central 1,2,4-triazole ring and the pendant benzene rings are 55.61 (10) and 68.59 (10)°; the dihedral angle between the benzene rings is 63.66 (9)°. Intramolecular N—HN and N—HO hydrogen bonds generate S(7) and S(12) rings, respectively. In the crystal, sheets extending in the (101) plane arise, with the molecules linked by C—HO, N—HN and N—HO interactions. A C—Hπ interaction further consolidates the structure.
organic compounds
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In the title compound, C8H7NO3S, the benzene ring is oriented at a dihedral angle of 69.25 (7)° to the S and O atoms of the sulfonyl group. The heterocyclic ring approximates to an envelope, with the N atom in the flap position. In the crystal, molecules are linked by N—HOc (c = carbonyl) hydrogen bonds, forming C(5) chains along [001]. Two R22(10) loops arise from pairs of C—HO hydrogen bonds and a weak aromatic π–π stacking interaction [centroid–centorid separation = 3.8404 (11) Å] also occurs.
organic compounds
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In the title molecule, C16H14N2O4S, the thiazine ring adopts a twist chair conformation with the N and adjacent C atom displaced by 0.966 (3) and 0.386 (4) Å, respectively, on the same side of the mean plane formed by the remaining ring atoms. The dihedral angle between the mean planes of the benzene rings is 37.65 (10)°. The molecular structure features an intramolecular O—HO hydrogen bond, which generates an S(6) ring. In the crystal, molecules are linked by N—HO and C—HO hydrogen bonds.
organic compounds
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The title compound, C6H4Br2ClN, is almost planar (r.m.s. deviation = 0.024 Å) and two intramolecular N—HBr hydrogen bonds generate S(5) rings. In the crystal, N—HBr hydrogen bonds link the molecules into chains propagating in [010].
organic compounds
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In the title molecule, C17H16N2O4S, the heterocyclic thiazine ring adopts a half-chair conformation, with the S and N atoms displaced by 0.546 (4) and 0.281 (4) Å, respectively, on opposite sides of the mean plane formed by the remaining ring atoms. The molecular structure is stabilized by an intramolecular O—HO hydrogen bond. The two aromatic rings are inclined to one another by 42.32 (11)°. In the crystal, molecules are linked by pairs of N—HO hydrogen bonds, forming inversion dimers. The dimers are linked via a series of C—HO interactions, leading to the formation of a three-dimensional network.
organic compounds
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The asymmetric unit of the title compound, C16H16N4O2S, contains two molecules (A and B) with similar conformations: the benzene rings are oriented at dihedral angles of 80.94 (10)° and 84.54 (10)° with their adjacent 1H-benzimidazole groups. In the crystal, the molecules are connected by N—HN hydrogen bonds, forming separate C(4) chains of both the A and B molecules along [010]. The A and B chains are cross-linked by several C—HO interactions involving the benzene rings and the sulfonyl groups, which lead to R21(5) loops in the linkage of the chains.