Synthesis of iron(III), cobalt(II), nickel(II), copper(II) and zinc(II) complexes with new quadridentate N, O- donor ligands

Department of Chemistry, University College, Kakatiya University, Warangal-506 009, India Manuscript received 26 August 1999, revised 17 January 2000. accepted 3 March 2000 The reaction between anthranilic acid and oxalyl chloride/malonyl chloride results in new quadridentate ligands, bis(2-rarboxyphenyl)oxamide [CPOA]Ibis(2-carboxyphenyl)malonamide [CPMA]. These ligands form 1 : 1 complexes of general formula, [Fe(L)(H2O)2]CI, [M(L)) and [Zn(L)]2H2O, where L = CPOA or CPMA, M = CoII, NiII or CuII.

Keywords

ligands, NMR spectra, organic compounds

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