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Articles by Peng Hou
Total Records ( 4 ) for Peng Hou
  Zhong-Lu You , Peng Hou and Che Wang
  Two new copper(II) complexes, [CuL2] (1) and [Cu2L2(NCS)2] · 2CH3CN (2) (HL = 2-bromo-4-chloro-6-[(2-morpholin-4-ylethylimino)methyl]phenol), have been synthesized and characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. Complex 1 was synthesized by reaction of HL with copper(II) acetate in methanol, while 2 was synthesized by adding ammonium thiocyanate to a methanol/acetonitrile (V : V = 2 : 1) solution of 1. Complex 1 crystallizes in the P21/n space group, and the thiocyanato-bridged dinuclear copper(II) complex, 2, crystallizes in the Pbcn space group. The Cu in 1 is four-coordinate square-planar with two imine N and two phenolate O atoms from two Schiff-base ligands. The Cu in 2 is five-coordinate square-pyramidal with NNO donor atoms of one Schiff-base ligand and one N atom of a bridging thiocyanate ligand defining the basal plane, and with one S atom of another bridging thiocyanate ligand occupying the apical position.
  Jing Han , Yongheng Xing , Che Wang , Peng Hou , Fengying Bai , Xiaoqing Zeng , Xingjing Zhang and Maofa Ge
  Two transition metal (Zn, Cu) complexes with a Schiff base (salicylideneglycine) and 1,10-phenanthroline: (C9H7NO3)Zn(C12H8N2)(H2O) (1) and (C9H7NO3)Cu(C12H8N2) (2) have been synthesized and characterized, including crystal structures, spectral characterization, thermogravimetric analyses and quantum chemistry calculations. X-ray crystallographic analysis shows the zinc to be six-coordinate mode, forming a slightly distorted octahedral geometry. The structure of 2 can be evaluated by the Addison distortion index (τ = 0.17), which indicates that the coordination environment of Cu is distorted slightly from square pyramidal (SP). The superoxide dismutase mimetic activity of the complexes was investigated by NBT-illumination. Complex 2 (IC50 = 6.15 μM) has better SOD-like activity than 1 (IC50 = 0.79 μM), although the SOD-like activity for 2 is not higher than some reported, it shows the possibility of SOD-like activity for the complexes with this amino-Schiff-base ligand (salicylideneglycine).
  Zhong-Lu You , Li-Li Ni , Peng Hou , Ji-Cai Zhang and Che Wang
  Two new isostructural copper(II)-zinc(II) complexes, [CuZnLBr2] (1) and [CuZnLCl2] (2) (H2L = N,N'-bis(4-methoxysalicylidene)cyclohexane-1,2-diamine), have been synthesized and characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. Both complexes crystallize in the P-1 space group. The Cu in each complex is four-coordinate square planar with two imines and two phenolates of L. The Zn in each complex is four-coordinate tetrahedral with two phenolates of L and two halides (Br for 1 and Cl for 2). The superoxide dismutase (SOD) activity of the complexes indicates that both complexes are rudimentary models for SOD.
  Qixian Zhang , Liansheng Jiao , Changsheng Shan , Peng Hou , Bin Chen , Xiaoyu Xu and Li Niu
  A novel series of compounds with different counter anions, i.e. 1-lcub[4-(4-nitrophenylazo)phenyloxy]rcubalkyl-3-methyl-1H-imidazol-3-ium bromide salts (Cn , n = 3, 6, 10) and tetrafluoroborate salts (Dn , n = 3, 6, 10), were synthesised by the incorporation of an imidazolium group into paraffin side chain-terminated 4-nitroazobenzene derivatives. Their chemical structures were determined by 1H NMR, 13C NMR, UV spectroscopy and elemental analysis. The thermotropic liquid crystalline properties of these materials were further studied by polarising optical microscopy, wide-angle X-ray diffraction and differential scanning calorimetry. The results show that Cn and Dn (n = 6, 10) exhibit smectic liquid crystalline phases. The ionic liquid groups play an important role in forming the smectic layer structure, via enhancement of the thermal stability of the smectic state.
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