NIXED LIGAND COMPLEXES OF TIN(Ⅱ) & LEAD(Ⅱ) METAL CHELATES OF SOME ORGANIC ACIDS WITH SALICYLIC ACID

摘要

A number of novel mixed ligand complexes of type ML_(2•)HL′ have been synthesized and characterized, where M = Sn(Ⅱ) or Pb(Ⅱ), L = deprotonated o-nitrophenol(ONP), 2, 4-dinitrophenol (DNP), 2, 4, 6-trinitrophenol (TNP), 1-nitroso-2-naphthol (1N2N), 8-hydroxy- quinoline (8HQ) or o-aminobenzoic acid; HL′ = Salicylic acid. All the complexes have been found to have 1 : 1 stoichiometric composition. The complexes have been characterized by elemental analysis, IR, UV-VIS spectral analysis and molar conductance measurements. IR spectral data show that the hydrogen bonding in these complexes is a dominant factor for their stability. Low value of their molar conductance would suggest them to be non-electrolyte.