organic compounds
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In the title molecule, C19H14N2, the benzimidazole unit is close to being planar [maximum deviation = 0.0102 (6) Å] and forms dihedral angles of 55.80 (2) and 40.67 (3)° with the adjacent phenyl rings; the dihedral angle between the phenyl rings is 62.37 (3)°. In the crystal, one C—HN hydrogen bond and three weak C—Hπ interactions involving the fused benzene ring and the imidazole ring are observed, leading to a three-dimensional architecture.
organic compounds
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In the title compound, C21H19BrN2O2·C2H6OS, the indole ring system is essentially planar, with a maximum deviation of 0.050 (3) Å for the non-bridgehead C atom adjacent to the N atom. The two cyclohex-2-enone rings adopt half-chair conformations. An intramolecular C—HO hydrogen bond occurs. The solvent molecule exhibits minor disorder of the S atom [site occupancies = 0.8153 (16) and 0.1847 (18)]. In the crystal, molecules are linked by N—HO hydrogen bonds, forming layers parallel to the bc plane.
organic compounds
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In the acridine system of the title molecule, C26H30N2O2, both cyclohex-2-enone rings adopt sofa conformations. The indole ring system is essentially planar, with a maximum deviation of 0.017 (2) Å for a bridgehead C atom. An intramolecular C—HO hydrogen bond occurs. The molecules assemble into C(6) chains in the crystal by way of N—HO hydrogen bonds.
organic compounds
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The title compound, C23H25BrN2O3, crystallizes with two independent molecules in the asymmetric unit (Z′ = 2) which differ in the twist of the 5-bromo-1H-indole ring with respect to the plane of the 4-methyl-1,4,5,6,7,8-hexahydroquinoline ring [dihedral angles of 78.55 (9) and 89.70 (8)° in molecules A and B, respectively]. The indole ring is planar in both molecules [maximum deviations = 0.021 (3) and −0.020 (3) Å for the N atom] while the cyclohexene ring has adopts a sofa conformation. In the crystal, molecules are linked by pairs of N—HO hydrogen bonds, forming dimers with R12(6) ring motifs. These dimers are connected by N—HO hydrogen bonds, generating chains along [110]. A C—HO contact occurs between the independent molecules.