organic compounds
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In the title compound, C23H27N3O4, the dihydropyridine ring adopts a 1,4B conformation. Intramolecular C—HO contacts occur. In the crystal, N—HO and N—HN hydrogen bonds and C—HN contacts connect the molecules into strands along the a-axis direction.
organic compounds
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In the title pyrimidine derivative, C12H16N2OS, the tetrahydropyrimidine ring adopts an envelope conformation with the C atom of the methylene –CH2– group as the flap. In the crystal, N—HO and N—HS hydrogen bonds connect molecules into undulating sheets perpendicular to the a axis.
organic compounds
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The asymmetric unit of the title compound, C30H22N2O6, comprises a half-molecule of the cyclobutane derivative. The least-squares planes defined by the respective C atoms of the aromatic substituents intersect at angles of 76.81 (7) and 89.22 (8)° with the least-squares plane defined by the C atoms of the cyclobutane ring. In the crystal, C—HO contacts connect the molecules into a three-dimensional network. The shortest centroid–centroid distance between the two different aromatic rings is 3.9601 (8) Å.
organic compounds
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In the title compound, C21H23N3O4S·H2O, the methylsulfanyl group is disordered over two sets of sites with site-occupancy factors of 0.631 (11) and 0.369 (11). The dihydropyridine ring adopts an E4 conformation. In the crystal, classical O—HN, O—HO and N—HO hydrogen bonds, as well as C—HO and C—HS contacts, connect the molecules into a three-dimensional network.
organic compounds
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The asymmetric unit of the title compound, C13H10F3NO3, contains two independent molecules with similar conformations. In the crystal, N—HO hydrogen bonds link alternating independent molecules into chains in [-110]. In the chain, the quinoline planes of the independent molecules are almost perpendicular to each other, forming a dihedral angle of 89.8 (1)°. π–π interactions between the aromatic rings of quinoline bicycles related by inversion centres [for two independent centrosymmetric dimers, the shortest centroid–centroid distances are 3.495 (1) and 3.603 (1) Å] link the hydrogen-bonded chains into layers parallel to (110). Weak C—HF and C—HO interactions further consolidate the crystal packing.
organic compounds
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The title compound, C24H18BrF3N4O4, is a 1,2,3-triazole derivative featuring, among others, a quinoline-derived substituent. In the crystal, C—HO, C—HN and C—HF contacts connect the molecules into a three-dimensional network. The shortest centroid–centroid distance between two aromatic systems is 3.896 (2) Å and is found between the two different six-membered rings of the quinoline scaffold in neighbouring molecules.
organic compounds
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In the title compound, C19H16F3NO6, a quinoline derivative featuring an annealated furan substituent, the mean planes of the carboxy substituents are at an angle of 74.3 (2)°. In the crystal, C—HO contacts result in undulating chains along [110]. C—HF contacts also occur. The shortest centroid–centroid distance between rings is 3.3376 (7) Å, involving two furan rings of neighbouring molecules.
organic compounds
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In the title compound, C28H19BrF2O2, the C=C double bond is E-configured. In the crystal, C—HO and C—HF contacts connect molecules into planes perpendicular to the c axis. The shortest centroid–centroid distance between two aromatic systems is 3.6745 (12) Å between one of the para-fluorophenyl rings and its symmetry-generated equivalent.
organic compounds
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In the title compound, C14H19N3O2, the heterocycle adopts a 1C4 conformation with the N atom being one of the flap atoms. In the crystal, classical N—HO hydrogen bonds and C—HO contacts connect the molecules into a three-dimensional network.
organic compounds
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In the title compound, C14H10BrClO2, a twofold halogenated derivative of phenylated phenyloxyethanone, the least-squares planes defined by the C atoms of the aromatic rings subtend an angle of 71.31 (17)°. In the crystal, C—HO contacts connect the molecules into chains along the b-axis direction.