organic compounds
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In the structure of the title compound, C27H39N3O3, each of the (4-oxopiperidin-1-yl)methyl residues adopts a flattened chair conformation (with the N and carbonyl groups being oriented to either side of the central C4 plane) and they occupy positions approximately orthogonal to the central benzene ring [Cbenzene—C—Cmethylene—N torsion angles 103.4 (2), −104.4 (3) and 71.9 (3)°]; further, two of these residues are oriented to one side of the central benzene ring with the third to the other side. In the crystal packing, supramolecular layers in the ab plane are sustained by C—HO interactions.
organic compounds
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The bicyclo[3.3.1]nonane ring in the title compound, C39H44N2O, adopts a chair–boat conformation with the four benzene rings being directed away from the carbonyl group. The presence of C—HO contacts leads to helical supramolecular chains along the b axis.
organic compounds
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The asymmetric unit of the title compound, C13H10F2N2O, contains one and a half N,N′-bis(4-fluorophenyl)urea molecules. One of the molecules has crystallographic twofold rotation symmetry. The benzene rings are twisted from each other by dihedral angles of 29.69 (6)° for the molecule in a general position and 89.83 (6)° for the symmetry-generated molecule. In the crystal structure, a pair of intermolecular N—HO hydrogen bonds link symmetry-related molecules into chains along the b axis, forming R21(6) ring motifs.
organic compounds
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In the title compound, C27H20ClNO, the quinoline ring forms a dihedral angle of 62.53 (5)° with the substituent benzene ring. In the crystal, intermolecular C—HCl interactions link the molecules into chains along the b axis. Intermolecular C—HN and C—HO hydrogen bonds further consolidate the structure into a three-dimensional network. The unit cell contains four solvent-accessible voids, each with a volume of 35 Å3, but no significant electron density was found in them.
organic compounds
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In the title compound, C19H23NO6, the 1,4-dihydropyridine ring is twisted slightly from planarity, with a maximum deviation of 0.101 (1) Å, and adopts a very flattened boat conformation. The dihedral angle formed between the plane through the four C atoms of the 1,4-dihydropyridine ring and the benzene ring is 84.67 (7)°. In the crystal structure, intermolecular N—HO and C—HO hydrogen bonds link the molecules into a three-dimensional network.
organic compounds
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In the title compound, C6H10N2O, the 2,3-dihydro-1H-pyrazole ring is approximately planar, with a maximum deviation of 0.013 (1) Å. Pairs of intermolecular N—HO hydrogen bonds link neighboring molecules into dimers, generating R22(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane by intermolecular N—HO hydrogen bonds. The crystal structure is further stabilized by C—Hπ interactions.
organic compounds
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In the title compound, C14H18N2O3S, the 1H-pyrazole ring is approximately planar, with a maximum deviation of 0.005 (1) Å. The dihedral angle formed between the 1H-pyrazole and phenyl rings is 79.09 (5)°. Pairs of intermolecular N—HO and OHN hydrogen bonds form dimers between neighboring molecules, generating R22(10) ring motifs. These dimers are further linked by intermolecular N—HO and O—HN hydrogen bonds into two-dimensional arrays parallel to the ac plane. The crystal structure is also stabilized by C—Hπ interactions.