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In the title formyl nitro aryl benzoate derivative, C15H10N2O7, the benzene rings form a dihedral angle of 4.96 (3)°. The mean plane of the central ester group, C—O—C–(=O)—C (r.m.s. deviation = 0.0484 Å), is twisted away from the formyl nitro aryl and benzoate rings by 46.61 (5) and 49.93 (5)°, respectively. In the crystal, the molecules are packed forming C—HO interactions in chains which propagate along [010]. Edge-fused R33(15) rings are generated along this direction.
organic compounds
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The title compound, C26H26S4, shows a dihedral angle of 76.64 (15)° between the central and peripheral benzene rings. An inversion center is located at the centroid of the thiobenzoyl ring. In the crystal, weak C—HS interactions form C(5) chains along [001]. There are no classical hydrogen bonds.
organic compounds
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In the title compound, C15H14O2, the terminal rings form a dihedral angle of 52.39 (4)°. The mean plane of the central ester group [r.m.s. deviation = 0.0488 Å] is twisted away from the benzene and phenyl rings by 60.10 (4) and 8.67 (9)°, respectively. In the crystal, molecules are linked by weak C—HO hydrogen bonds, forming C(6) chains which run along [100].
organic compounds
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In the title nitroaryl benzoate derivative, C14H9NO5, the aromatic rings form a dihedral angle of 46.37 (8)°. The central ester moiety, —C—(C=O)—O—, is essentially planar (r.m.s. deviation for all non-H atoms = 0.0283 Å) and forms a dihedral angle of 54.06 (9)° with the 4-formyl-2-nitrophenyl ring and 7.99 (19)° with the benzoate ring. In the crystal, molecules are intertwined by weak C—HO interactions, forming helical chains along [100].
organic compounds
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The title nitrophenyl benzamide, C13H9BrN2O3, with two molecules in the asymmetric unit, has dihedral angles of 16.78 (15) and 18.87 (14)° between the benzene rings. An intramolecular N—HO hydrogen bond is observed in each molecule. In the crystal, the molecules are linked by weak C—HO interactions; halogen–halogen interactions are also observed [BrBr = 3.4976 (7) Å]. These interactions form R22(10), R22(15) and R66(32) edge-fused rings along [010].
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In the title isobenzofuranone derivative, C20H15NO2, the planar fused-ring system (r.m.s. deviation for the 10 fitted atoms = 0.031 Å) forms dihedral angles of 63.58 (6) and 63.17 (8)° with the N-bound phenyl rings; the dihedral angle between the planes of these phenyl rings is 85.92 (7)°. In the crystal, molecules are linked by weak C—HO interactions, involving both O atoms, forming helical supramolecular chains along [001].
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The title compound, C11H8N2O3S, shows two molecules per asymmetric unit, with the dihedral angles between the benzene and thiophene rings of 13.53 (6) and 8.50 (5)° being a notable difference between them. An intramolecular N—HO hydrogen-bond in each molecule generates an S(6) ring motif. The crystal packing shows no classical hydrogen bonds with the molecules being packed to form weak C—HO and C—HS interactions leading to R22(9) and R44(25) rings which are edge-shared, giving layers parallel to (010).
organic compounds
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In the title compound, C12H9NO3S, the dihedral angle between the pyridine and benzene rings is 83.93 (7)°. In the crystal, pairs of O—HO hydrogen bonds link the molecules, forming inversion dimers with graph-set notation R22(22). These dimers are in turn linked by weak C—HO hydrogen bonds along [100], forming R22(8) rings.
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In the title picryl-substituted ester, C13H6BrN3O8, the mean plane of the central ester C–O–C(=O)–C fragment (r.m.s. deviation= 0.0186 Å) is rotated by 84.73 (7)° and 19.92 (12)° to the picryl and phenyl rings, respectively. In the crystal, the molecules are linked by C—HO interactions, forming centrosymmetric dimers enclosing R22(10) and R22(22) ring motifs along [001] and further helical chains of dimers enclosing R22(10) ring motifs along [010].