In the mol-ecule of the title compound, C(21)H(18)O(9), the two aromatic rings are aligned at an angle of 49.7 (1)°.
The asymmetric unit of the title compound, C(22)H(22)O(4)S·2H(2)O, contains one quarter of the organic mol-ecule and one half water mol-ecule, the site symmetries of the S atom and the water O atom being mm2 and m, respectively. The dihedral angle between the benzene rings is 76.27 (11)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link… (More)
In the mol-ecule of the title compound, C(25)H(20)N(2)O(3), the dihedral angles formed by adjacent benzene rings are 66.75 (8), 48.37 (8) and 71.43 (9)°. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by inter-molecular N-H⋯O hydrogen bonds.
The title compound, C(5)H(9)O(4)PS, was synthesized by the reaction of penta-erythritol with thio-phosphoryl chloride. In the crystal structure, the three six-membered rings all adopt boat conformations. Mol-ecules form chains along the c axis via inter-molecular O-H⋯O hydrogen bonds.
The asymmetric unit of the title compound, C(20)H(18)O(8), contains two mol-ecules with small geometric differences. The dihedral angles between the benzene rings are 62.94 (12) and 59.99 (12)°. The dihedral angles between the carboxylate groups in the 2- and 3-positions are 81.72 (13) and 65.54 (15)°, respectively. However, the dihedral angles between the… (More)
In the organic molecule of the title compound, C(16)H(10)O(8)·H(2)O, the dihedral angle between the two benzene rings is 42.30 (11)°. Extensive O-H⋯O hydrogen bonding helps to stabilize the crystal structure.
Public service management is essentially about inter-administration cooperation in a competitive, continuously changing environment, which occurs frequently in the provision of service chain. The paper presents an inter-administration cooperation model and intelligent and cooperative information system which makes public service management efficient. It… (More)