Symmetric binuclear complexes with an 'end-off' compartmental Schiff base ligand

被引:58
作者
Annigeri, SM [1 ]
Naik, AD [1 ]
Gangadharmath, UB [1 ]
Revankar, VK [1 ]
Mahale, VB [1 ]
机构
[1] Karnatak Univ, Dept Chem, Dharwad 580003, Karnataka, India
关键词
D O I
10.1023/A:1014889431931
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Four binuclear transition metal(II) complexes: [Co2L(mu-Cl)Cl-2] . 2H(2)O, [Ni2L(mu-Cl)Cl-2(H2O)(2)] . 2H(2)O, [Cu2L(mu-Cl)Cl-2] . 2H(2)O and [Zn2L(mu-Cl)Cl-2] . 2H(2)O, where LH is the binucleating ligand 2,6-diformyl-4-methylphenol bis(2-hydrazino benzothiazole), were prepared. Based on the i.r. spectra, elemental analysis, conductivity measurements and thermal analysis, we propose that these complexes contain an endogenous phenoxide bridge and an exogenous chloride bridge. Magnetic and spectral data supports the existence of a weak antiferromagnetic interaction between the metal ions, and octahedral for Ni-II and a square pyramidal environment for remaining complexes. The compounds show significant growth inhibitory activity against the fungi, Aspergillus niger and Candida albicans, as compared to antibacterial activity against Bacillus cirroflagellosus and Pseudomonas auregenosa.
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页码:316 / 320
页数:5
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