Synthesis, characterization and spectroscopic properties of the hydrazodye and new hydrazodye-metal complexes

摘要

AbstractThe hydrazodye (L) [disodium (7-hydroxyl-8-phenylazo-1,3-naphthalenedisulfonate)] is prepared and characterized by infrared1H,13C, NMR and UV–visible spectra. The spectral data of the ligand (L) existing predominantly in the hydrazones form.Reaction of the hydrazodye (L) with Cd2+, Ni2+, Cu2+and Zn2+chloride gave two series of metal complexes with general formula [ML2(OH2)2]2Cl and [ML2(caf)2]2Cl. Their complexes were identified by FTIR, UV–visible spectra,1H,13C, NMR, EPR, XRD and molar conductance. The molar conductance reveals that the new series of metal complexes are non-electrolytes. The postulated octahedral structure of the obtained complexes is also proposed on spectroscopic data analysis.Highlights?The highlights of this manuscript are:?Eight new complexes from [ML2(OH2)2]2Cl and [ML2(caf)2]2Cl were synthesized.?FTIR, UV–visible spectra,1H,13C, NMR, EPR, XRD and molar conductance of complexes were investigated.?The octahedral structure of the obtained complexes is also proposed using the spectroscopic data analysis.]]>