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In the title compound, C30H22N2O7S2, the configuration about the propene C=C bond is E. The indole unit is essentially planar, with a maximum deviation of 0.031 (3) Å. The dihedral angle between the planes of the phenyl rings of the two phenyl­sulfonyl groups is 80.95 (19)°. The central prop-2-ene-1-one group is oriented at a dihedral angle of 44.26 (11)° with respect to the nitro­phenyl ring and at 39.24 (8)° with respect to the indole unit. The S atoms are in a distorted tetra­hedral configuration. In the crystal, mol­ecules are linked into centrosymmetric dimers via pairs of C—H...O hydrogen bonds with an R22(24) graph-set motif. The crystal structure is stabilized by further C—H...O inter­actions. Short intra­molecular C—H...O contacts result in several S(6) rings.

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In the title compound, C18H18O2, the methyl acrylate substituent adopts an extended E conformation with all torsion angles close to 180°. The mean plane of the acrylate unit and the phenyl ring are approximately orthogonal to each other, making a dihedral angle of 81.40 (6)°. The position of the carbonyl group with respect to the olefinic double bond is typically S-trans. The crystal packing is stabilized by inter­molecular C—H...π inter­actions.

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In the title compound, C14H10N2O2S, the benzothia­zole and quinazoline ring systems are essentially planar with maximum deviations of 0.0127 (16) and 0.1588 (15) Å, respectively, and make a dihedral angleof 3.02 (5)°, which shows that the entire mol­ecule is almost planar. The O atoms deviate from the benzothia­zole ring system by 1.2231 (14) and −1.1989 (15) Å. The crystal packing features non–classical C—H...O hydrogen bonds and is further consolidated by π–π inter­actions [centroid–centroid distances = 3.7568 (8) and 3.8848 (9) Å].
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