Chem. J. Chinese Universities

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Synthesis, Crystal Structure and Antibacterial Activity of Two Novel Complexes of N,N'-Bis(o-oxy-acetate)benzylpropylenediamine with Cu(Ⅱ) and Ni(Ⅱ) and a Complex N-(o-oxy-acetate)benzylpropylenediamine with Cu(Ⅱ)

WANG Zhan-Liang, ZHU Dong-Sheng, WANG Rong-Shun*   

  1. Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
  • Received:2007-10-16 Revised:1900-01-01 Online:2008-05-10 Published:2008-05-10
  • Contact: WANG Rong-Shun

Abstract: Complex Cu(Ⅱ)L1·H2O·0.25CH3CH2OH(2)[L1=N,N'-bis(o-oxy-acetate) benzylpro-pylenediamine(1)] was synthesized via the reactions between compound 1 and Cu(Ⅱ) dichloride in the solvents of water and ethanol, and Cu(Ⅱ)ClL2·3H2O(3)[L2=N-(o-oxy-acetate) benzylpropylenediamine ] was prepared via the reaction between compound 1 and Cu(Ⅱ) dichloride in the solvents of water and ethanol(pH=8~9). Complex Ni(Ⅱ)L1·2.75H2O(4) was also synthesized by the reactions between the compounds 1 and Ni(Ⅱ) dichloride in water. Compounds 14 were characterized by elemental analysis, 1H NMR, FTIR spectroscopy and single crystal X-ray diffraction analysis. There are one molecule(hostmolecule), one water molecule(guestmolecule) and quarter ethanol molecule in one asymmetric unit of complex 2, the Cu(Ⅱ) atom exhibits a distorted octahedral geometry. There are one molecule(hostmolecule) and three water molecules in each unit of complex 3, the Cu(Ⅱ) atom exhibits a distorted octahedral geometry. In the asymmetric unit of complex 4, the Ni(Ⅱ) atom also exhibits a distorted octahedral geometry. Complexes 2 and 3 exhibit good antibacterial properties, while the antibacterial properties decrease in the following order: complex 3>complex 2> compound 1.

Key words: o-Oxy-acetate-benzaldehyde, Cu(Ⅱ) complex, Crystal structure, Antibacterial activity

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