期刊
APPLIED ORGANOMETALLIC CHEMISTRY
卷 24, 期 10, 页码 741-747出版社
WILEY
DOI: 10.1002/aoc.1678
关键词
Schiff base; D, L-selenomethionine; complexes; antibacterial; antifungal
资金
- National Natural Science Foundation of China [20904010]
- Fundamental Research Funds for the Central Universities [2009ZM0170]
Novel zinc(II), copper(II), and cobalt(II) complexes of the Schiff base derived from 2-hydroxy-1-naphthaldehyde and D, L-selenomethionine were synthesized and characterized by elemental analysis, IR, electronic spectra, conductance measurements, magnetic measurements and powder XRD. The analytical data showed the composition of the metal complex to be ML(H2O), where L is the Schiff base ligand and M=Co(II), Cu(II) and Zn(II). IR results confirmed the tridentate binding of the Schiff base ligand involving azomethine nitrogen, naphthol oxygen and carboxylato oxygen atoms. H-1 NMR spectral data of lithium salt of the Schiff base ligand [Li(HL)] and ZnL(H2O) agreed with the proposed structures. The conductivity values of complexes between 12.50 and 15.45 S cm(2) mol(-1) in DMF suggested the presence of non-electrolyte species. The powder XRD studies indicated that Co(II) complex is amorphous, whereas Cu(II) and Zn(II) complexes are crystalline. The results of antibacterial and antifungal screening studies indicated that Li(HL) and its metal complexes are active, but CuL(H2O) is most active among them. Copyright (C) 2010 John Wiley & Sons, Ltd.
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