Synthesis And Characterization Of A Quinoxaline Derivative And Its Ni (ii) And Co (ii) Complexes.

Coordination compounds play vital roles in biology, biochemistry and medicine,rncontrolling the structure and function of many enzymes and their metabolism. Theyrnfind varied application in many industrial processes and in the development of newrnmaterials with specifically designed properties. Thus, synthesis and study of therncomplexes is very important. In this project work, equimolar quantities of ophenyldiaminernand ninhydrine were condensed to produce a quionoxline derivativern(NHOPD) which behaves as a bidentate ON donor ligand. The formation ofrnquionoxline derivative (NHOPD) was confirmed by 1HNMR. The ligand (NHOPD)rnwas further complexed with divalent Ni (II) and Co (II) metal salts. Metal complexesrnof nickel and Cobalt with quionoxline (NHOPD) were prepared and characterizedrnby elemental analysis, conductance measurements, atomic absorption spectra, IR,rnNMR and UV spectroscopy and magnetic susceptibility measurements.rnKey terms: Quinoxaline, o-phenyldiamine, ninhydrine, NHOPD

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