Binuclear complexes of Cu~(II)and Ni~(II)Schiff base of salicylaldehyde and 1,2-propylenediamine with alkali metal salts of oxygen and nitrogen containing organic acids

摘要

A number of new heterobinuclear alkali metal complex of general formula M_aPS.M_bL have been synthesized and characterized,where M_a=Cu~(II)or Ni~(II),PS=N,N'-1,2-propylene-bis(salicylaldimine),M_b=Li,Na or K and L=deprotonated o-nitrophcnol,2,4-dinitrophenol,2,4,6-trinitrophenol and 1-nitroso-2-naphthol.These complexes have been characterized by elemental analysis,electronic and IR spectral analysis,magnetic moment and molar conductance measurements.The IR spectra suggest bonding between the Ni~(II)or Cu~(II)metal chelate and alkali metal which appear by dative bond via oxygen atoms of C-O(phenolic).Low value of molar conductance would suggest them to be non-electrolyte.These complexes are biologically active against E.coli,S.aureus,C.albicans and so these may be treated as good antibacterial agents and fungicides.It was therefore,thought interesting to synthesize the title compounds and examine their antimicrobial activity.