Are you Du Haitang?

Claim your profile

Publications (3)0 Total impact

  • Du Haitang, Du Haijun, An Ying, Li Shengnan
    [show abstract] [hide abstract]
    ABSTRACT: In the molecule of the title compound, C17H15N5O3S, the planar central heterocylic ring system is oriented with respect to the benzene and pyridine rings at dihedral angles of 6.61 (3) and 19.22 (3)°, respectively. An intramolecular C—H...N hydrogen bond results in the formation of a six-membered ring, adopting a flattened boat conformation. In the crystal structure, intermolecular C—H...N hydrogen bonds link the molecules.
    Acta Crystallographica Section E. 01/2008;
  • Du Haitang, Du Haijun, An Ying, Li Shengnan
    [show abstract] [hide abstract]
    ABSTRACT: In the title compound, C18H15ClN4O2S, the pyrazole ring makes dihedral angles of 67.4 (1) and 12.5 (1)° with the phenyl and 4-hydroxyphenyl groups, respectively; the two benzene rings are twisted by 60.1 (1)° with respect to each other. The thiourea NH groups are involved in N—H...O and N—H...Cl intramolecular hydrogen bonds. A hydrogen bond between the phenolic OH group and the pyrazole N atom connects molecules into a one-dimensional polymeric structure.
    Acta Crystallographica Section E. 01/2008;
  • Du Haitang, Du Haijun, An Ying, Li Shengnan
    [show abstract] [hide abstract]
    ABSTRACT: In the molecule of the title compound, C19H18N4O3S, the planar central heterocylic ring system is oriented with respect to the trimethoxyphenyl and 2-methylphenyl rings at dihedral angles of 4.43 (3) and 4.32 (3)°, respectively. The dihedral angle between the two benzene rings is 7.65 (4)°. In the crystal structure, intermolecular C—H...N hydrogen bonds link the molecules into centrosymmetric R22(18) dimers. These dimers are connected via a C—H...π contact between the 2-methylphenyl and trimethoxyphenyl rings, and a π–π contact between the thiadiazole and trimethoxyphenyl rings [interplanar distance 3.51 Å, dihedral angles 4.17(4)°]. An intramolecular C—H...N hydrogen bond is also present.
    Acta Crystallographica Section E. 01/2008;