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Lv L.-P.,Linjiang College | Lv L.-P.,Zhejiang University of Technology | Tong G.-T.,Linjiang College | Xia C.-C.,Taishan Medical University | Liu Y.-L.,Hangzhou Technology Chemicals CO.
Zeitschrift fur Kristallographie - New Crystal Structures | Year: 2014

C11H14N2O4, triclinic, P1¯ (no. 2), a = 11.174(4) Å, b = 11.260(4) Å, c = 19.769(7) Å, α = 93.66(2)°, β = 101.25(1)°, γ = 93.08(2)°, V = 2429.9 Å3, Z = 8, Rgt(F) = 0.0504, wRref(F2) = 0.1537, T = 223 K. © 2014 by Walter de Gruyter Berlin/Boston. Source


Lv L.-P.,Linjiang College | Yu T.-M.,Linjiang College | Yu W.-B.,Linjiang College | Hu X.-C.,Zhejiang University of Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The asymmetric unit of the title compound, C 11H 11N 3O 2·0.25H 2O, contains two independent organic molecules and a water molecule, which lies on a twofold rotation axis. The side chains of the two molecules have slightly different orientations, the C=N - N - C torsion angle being -163.03 (15)° in one and -177.52 (14)° in the other, with each adopting a trans configuration with respect to the C=N bond. In the crystal, molecules are linked into chains extending along b by N - H⋯O, O - H⋯N and O - H⋯O hydrogen bonds and in addition, four inter-molecular C - H⋯π interactions are present. Source


Yu T.-M.,Linjiang College | Lv L.-P.,Linjiang College
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

In the title molecule, C10H12N2O 2, the acetohydrazide group is almost planar [within 0.0306 (12) Å] and forms a dihedral angle of 12.15 (14)° with the benzene ring. The meth-oxy group deviates from the attached benzene ring with a C - O - C - C torsion angle of 4.2 (4)°·The molecule adopts a trans configuration with respect to the C=N bond. In the crystal, molecules are linked into centrosymmetric dimers by pairs of N - H⋯O hydrogen bonds and intermolecular C - H⋯O interactions further stabilize the structure. Source


Lv L.-P.,Linjiang College | Liu S.,Linjiang College
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

The title compound, C9H8Br2N2O 3, crystallizes with two very similar independent molecules in the asymmetric unit, each of which adopts a trans configuration with respect to the C=N bond. Intramolecular O-H⋯N hydrogen bonds are observed in each independent molecule. In the crystal structure, molecules are linked into chains propagating along [010] by N-H⋯O and C-H⋯O hydrogen bonds. In addition, C-H⋯π interactions stabilize the structure. Source


Hu X.-C.,Zhejiang University of Technology | Zhang J.,Zhejiang University of Technology | Yang D.-Y.,Hangzhou Fist Chemical Co. | Lv L.-P.,Linjiang College
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The asymmetric unit of the title compound, C 10H 12N 2O 3·2H 2O, contains two organic molecules with similar conformations and four water molecules. Each organic molecule is close to planar (r.m.s. deviations = 0.035 and 0.108 Å) and adopts a trans conformation with respect to its C=N bond. In the crystal, the components are linked into a three-dimensional network by N - H⋯O, O - H⋯O, O - H⋯N and C - H⋯O hydrogen bonds, some of which are bifurcated. An R 2 2(8) loop occurs between adjacent organic molecules. Source

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