SYNTHESIS, CHARACTERIZATION & ANTIMICROBIAL STUDIES OF BIMETALLIC COMPLEXES OF Ni(II) & Cu(II)-PYRIDINE-2-ALDOXIME WITH Rb & Cs METAL SALTS OF SOME ORGANIC ACIDS

摘要

A number of bimetallic complexes of the type [M_a(pyox)_2.(M_bL)], where M_a = Ni(ll) or Cu(ll), M_b = Rb or Cs, pyox = pyridine-2-aldoxime, L = deprotonated o-nitrophenol, 2,4-dinitrophenol have been synthesized. [Ma(pyox)J have been used as a complex ligand for the synthesis. It acts as a bidentate complexing agent, coordinating through oxygen atoms of oximino groups to Rb or Cs metal. Stereochemistry of the complexes have been studied by elemental analysis, spectral data, conductance and magnetic moment measurements. Antimicrobial efficiency of the compounds has been screened against five different micro-organisms. The antimicrobial results evidently show that the activity of the ligand/complex ligands became more pronounced when coordinated to the metal ions..