organic compounds
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In the title compound, C11H13N3O2, the 1,2,3-triazole ring and the phenol ring form a dihedral angle of 55.46 (5)°. In the crystal, inversion-related molecules associate through pairs of hydroxy–phenol O—HO hydrogen bonds, giving centrosymmetric cyclic dimers [graph set R22(18)]. These dimers are linked into infinite chains along [001], giving an overall two-dimensional network structure parallel to the bc plane through hydroxy O—HN and triazole C—HN hydrogen bonds.
organic compounds
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The asymmetric unit of the title compound, C6H9ClN4, contains four independent molecules (A, B, C and D). Their main difference is the torsion angles, ranging from 1.6 (5) to 5.9 (5)°, between the methyl group and the pyrimidine plane. A pair of intermolecular N—HN hydrogen bonds link molecules A and C into a twisted dimer with a dihedral angle of 32.9 (1)° between the two pyrimidine rings, creating an R22(8) motif. In the packing, each two molecules of B, C and D form centrosymmetric dimers through two intermolecular N—HN hydrogen bonds, locally creating R22(8) motifs. The dimers of C and D are alternately bridged by A into an infinite zigzag strip, locally creating two different R22(8) motifs with dihedral angles of 32.9 (1) and 63.4 (1)° between the pyrimidine rings. Finally, these strips together with the dimers of B associate into a complicated three-dimensional framework.
organic compounds
Open access
The title thiacalix[4]arene derivative, C36H34Br2O8S4, adopts an unusual pinched cone conformation with the propoxy-substituted benzene rings inclined inward [forming a dihedral angle of 33.4 (1)°] and with the brominated benzene rings bent outward, making a dihedral angle of 66.1 (1)°. In the crystal, the molecules form chains along [001] via C—HS hydrogen bonds and SS contacts [SS = 3.492 (3) Å]. The chains are associated into bilayers through C—HO hydrogen bonds, generating an R22(10) motif.