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ABSTRACT: In the title compound, C10H10N4O2·H2O, the dihedral angle between the tetrazole and benzene rings is 63.24 (11)°. The crystal structure is stabilized by intramolecular O—H...N and O—H...O hydrogen bonds.
Acta Crystallographica Section E. 01/2010;
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ABSTRACT: The title compound, C22H18N2O, was synthesized from naphthalen-2-ol, benzaldehyde and pyridin-2-amine. In the crystal, molecules are linked into centrosymmetric R22(16) dimers by pairs of O—H...N hydrogen bonds. The molecular conformation is stabilized by an N—H...O hydrogen bond. The dihedral angle between the naphthylene ring system and the phenyl ring is 72.86 (12)°.
Acta Crystallographica Section E. 01/2010;
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ABSTRACT: In the title complex, [Zn(C4H3N6)2(H2O)2], the metal centre lies on an inversion centre and displays a distorted octahedral ZnN4O2 coordination geometry. The organic ligand is not planar; the dihedral angle between the imidazole and tetrazole rings is 8.39 (9)°. An extended network of intermolecular N—H...N and O—H...N hydrogen bonds stabilizes the crystal structure.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: In the molecule of the title compound, C15H13N3O4, the dihedral angle between the pyrazole and benzene ring planes is 67.7 (1)°. The crystal structure is stabilized by an intramolecular C—H...O hydrogen bond and two weak intermolecular C—H...O interactions.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: In the molecule of the title compound, C15H13N3O4, the dihedral angle between the pyrazole and benzene rings is 79.89 (6)°. An intramolecular C—H...O hydrogen bond is present. The crystal structure is stabilized by π–π stacking interactions between centrosymmetrically related pyrazole rings with a centroid–centroid distance of 3.500 (3) Å.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: The title compound, C15H13N3O4, was synthesized from dimethyl 1H-pyrazole-3,5-dicarboxylate and 4-(bromomethyl)benzonitrile. The interplanar angle between the pyrazole and cyanobenzyl ring planes is 71.74 (17)° and an intramolecular C—H...O interaction occurs. The crystal structure is stabilized by π–π stacking interactions between the neighbouring pyrazole and benzene rings [centroid–centroid distances of 3.5074 (16) and 3.9401 (15) Å, respectively]. One of the methyl groups is disordered over two positions of equal occupancy.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: The title compound, {(C2H8N)2[Zn2(C8H4O4)3(C2H7N)2]·2C3H7NO·6H2O}n, consists of two-dimensional non-interpenetrated sheets with 63 topology, which are stacked together in an …ABAB… packing mode along the c axis. The distance between adjacent A and B sheets is ca 7.3 Å. In the structure, the ZnII center is coordinated by three O atoms from three terephthalate groups and one N atom from one dimethylamine ligand, adopting a distorted tetrahedral geometry. All solvent water molecules are disordered. In the structure, N—H...O and O—H...O hydrogen bonds are observed.
Acta Crystallographica Section E. 01/2009;
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ABSTRACT: In the title compound, C11H9N5S, the dihedral angle between the mean planes of the thione-substituted triazole ring and benzonitrile ring is 4.28 (3)°. Intermolecular N—H...S hydrogen bonds link the molecules together into characteristic dimers.
Acta Crystallographica Section E. 01/2008;
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ABSTRACT: The title compound, C16H12N2O, was accidentally synthesized by the reaction of 4-(bromomethyl)benzonitrile and pentaerythritol. The dihedral angle between the benzene rings is 57.39 (9)°. In the crystal structure, molecules are linked by intermolecular C—H...N hydrogen-bonding interactions to form chains running parallel to the b axis.
Acta Crystallographica Section E. 01/2008;
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ABSTRACT: The title compound, C11H10N4O4·H2O, was synthesized from 1-azidomethyl-3-nitrobenzene and ethyl acetylacetate. Single-crystal X-ray analysis reveals that the dihedral angle between the triazole and benzene ring planes is 84.80 (2)°. The packing of the molecules is stabilized by strong O—H...O hydrogen bonds involving the solvent water molecules as donors and acceptors. The resulting layers are arranged into a three-dimensional framework via weak C—H...O interactions.
Acta Crystallographica Section E. 01/2008;