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

摘要

Some nobel bimetallic complexes of the general formula [M_a(THL)_2.M_bL]; where M_a= Ni(ll) or Cu(ll), M_b= Rb or Cs, THL = 3-hydroxy-2-methyl-1,4-naphthaquinone (Thiocol), L = deprotonated o-nitrophenol or 2,4-dinitrophenol have synthesized. The complexes have been characterized by elemental analysis, infrared, electronic absorption spectra, molar conductance and magnetic moment measurements. IR spectral studies show coordination of Rb or Cs metal through oxygen atoms of O-H(phenolic) groups of metal chelate, [M_a(THL)_2]. The electronic spectral and magnetic moment data indicate their octahedral geometry. The antimicrobial results showed that the activity of the ligand/complex ligands became more pronounced when coordinated to the metal ions.