Abstract
A new azo compounds is prepared by coupling the diazonium salts of (2- Cyano aniline) with 1,3- dihydroxynaphthalene to form (E)-2-((2,4-dihydroxynaphthalen-1- yl) diazenyl)benzonitrile. The azo ligand was identified by: Mass, 1H-NMR, C13NMR,UV-Vis. and IR spectra, in addition to elemental analysis measurement. The chelate complexes were characterized by elemental analysis, magnetic susceptibility, Molar conductance, UV-Vis. and IR spectra. The geometry of metal complexes were proposed based on analytical and spectral data. Analytical data revealed that all the complexes exhibited 1:2 metal–ligand ratio. On the basis of magnetic susceptibility measurements, suitable geometry was proposed for each complex. IR spectra of complexes show that the ligand is coordinated to the metal ions in bidentate manner with Oxygen and Nitrogen donor sites of hydroxynaphthalene (OH) and azo Nitrogen, which suggest octahedral geometry for all complexes. Also, biological evaluation of all synthesized compound shows moderate to good activity against Candida albicans, as antifungal.
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