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organic compounds
In the title molecule, C15H11ClO2, the ketone group is in the s-cis conformation with respect to the olefinic double bond. The two aromatic rings form a dihedral angle of 26.07 (8)°. Screw-related molecules are linked via O—H
O hydrogen bonds, forming a chain along the c axis. Weak C—HO and C—HCl interactions interconnect the chains into a three-dimensional network.
O hydrogen bonds, forming a chain along the c axis. Weak C—HO and C—HCl interactions interconnect the chains into a three-dimensional network.organic compounds
The title molecule, C16H14O3, is slightly distorted from planarity, the dihedral angle between the two benzene rings being 9.51 (7)°. The configuration of the keto group with respect to the olefinic double bond is s-cis. O—HO hydrogen bonds, and C—HO and π–π interactions, link the molecules to form a three-dimensional network. The C—HO interactions form rings of graph-set motifs S(5), 
(6) and (7).
O hydrogen bonds, and C—HO and π–π interactions, link the molecules to form a three-dimensional network. The C—HO interactions form rings of graph-set motifs S(5), 
(6) and (7).organic compounds
The title molecule, C15H11BrO2, is approximately planar and the dihedral angle between the two aromatic rings is 10.2 (2)°. The H atoms of the central enone moiety are trans. The molecules form centrosymmetric hydrogen-bonded dimers via intermolecular O—HO hydrogen bonds (HO = 2.02 Å and O—HO = 172°).
O hydrogen bonds (HO = 2.02 Å and O—HO = 172°).organic compounds
The title compound, C16H14O3, crystallizes in the triclinic system, with two independent molecules in the asymmetric unit; these are related by a non-crystallographic twofold rotation axis. The two molecules differ slightly in the relative orientation of the two aromatic rings. They are linked by C—Hπ interactions to form a dimer and O—HO hydrogen bonds link the dimers into chains along the c axis. C—Hπ interactions interlink the chains into a three-dimensional network.
π interactions to form a dimer and O—HO hydrogen bonds link the dimers into chains along the c axis. C—Hπ interactions interlink the chains into a three-dimensional network. organic compounds
In the title compound, C19H15BrN2O4S, the orientations of the phenylsulfonyl and 2-bromo-4,5-dimethoxybenzyl substituents with respect to the indole moiety are influenced by intramolecular C—HO and C—HBr interactions. The sulfonyl-bound phenyl ring forms a dihedral angle of 86.9 (1)° with the mean plane through the indole ring system.
O and C—HBr interactions. The sulfonyl-bound phenyl ring forms a dihedral angle of 86.9 (1)° with the mean plane through the indole ring system.organic compounds
In the title compound, C23H18BrN3O2S2, the sulfonyl-bound phenyl ring and benzimidazole moiety are nearly orthogonal to the indole ring system. The molecular structure is stabilized by C—HBr and C—HO hydrogen bonding interactions. In the crystal structure, glide-related molecules are linked by N—HN hydrogen bonds to form chains along the c axis and adjacent chains are interlinked by C—Hπ interactions into a three-dimensional network.
Br and C—HO hydrogen bonding interactions. In the crystal structure, glide-related molecules are linked by N—HN hydrogen bonds to form chains along the c axis and adjacent chains are interlinked by C—Hπ interactions into a three-dimensional network. organic compounds
The title compound, C24H20N2O3S, crystallizes with two independent molecules in the asymmetric unit, related by a non-crystallographic twofold rotation axis. The two molecules differ in the relative orientations of the phenylsulfonyl group and the indole ring system. In both molecules, the seven-membered ring adopts a distorted boat conformation. The molecular packing is stabilized by C—Hπ and C—HO interactions.
π and C—HO interactions.organic compounds
In the title compound, C23H19Br2NO4S, the orientation of the phenylsulfonyl substituent with respect to the indole ring system is influenced by intramolecular C—HO interactions. The sulfonyl-bound phenyl ring is orthogonal to the indole ring system. In the crystal structure, π–π stacking interactions involving the indole ring system link symmetry-related molecules into dimers.
O interactions. The sulfonyl-bound phenyl ring is orthogonal to the indole ring system. In the crystal structure, π–π stacking interactions involving the indole ring system link symmetry-related molecules into dimers.organic compounds
In the title compound, C18H16N2O2, the dihedral angle between the indole ring system and the benzoyl benzene ring is 31.5 (1)°. In the crystalline state, symmetry-related molecules are linked via N—HO and C—HO hydrogen bonds, and π–π interactions to form a layer structure parallel to the bc plane.
O and C—HO hydrogen bonds, and π–π interactions to form a layer structure parallel to the bc plane.organic compounds
The title molecule, C15H12BrNO, is approximately planar and the dihedral angle between the two aromatic rings is 9.6 (1)°. The crystal packing reveals that the molecules translated by one unit cell along the a-axis direction are linked into a chain by intermolecular N—HO and C—HO hydrogen-bonding interactions. The screw-related molecules of adjacent chains are linked via N—HN hydrogen bonds into a sheet-like structure parallel to the ab plane.
O and C—HO hydrogen-bonding interactions. The screw-related molecules of adjacent chains are linked via N—HN hydrogen bonds into a sheet-like structure parallel to the ab plane.organic compounds
The title molecule, C20H16O, has an s-cis conformation for the ketone system. The dihedral angle between the two aromatic ring systems is 50.3 (1)°. Centrosymmetrically related molecules are linked via weak C—Hπ interactions into a chain along [110].
π interactions into a chain along [110].
