Synthesis, spectral properties and antibacterial studies of new hetrocyclic schiff-azo ligand derived from 5-amino 2-phenyl.4h-pyrazol-3-one with some transition metal complexes

Abstract

In this article, a synthesized ligand [5-amino 2-phenyl.4H-pyrazol-3-one ] and it was used to prepare new complexes of Mn (II),Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Ag(I). The new ligand (HMABP) has categorized by Micro Elemental Analysis (C.H.N.S), UV-visible, Fourier Transform infrared (FTIR) approaches, 1H,13C-NMR spectroscopy and mass spectroscopy. The consequence has specified that the ligand was represented as N,N,O-tetradentate. The preparing of complexes has accomplished after fixing the finest concentration and pH. UV-Vis spectra of these complexes solutions have been examined for a range of pH (3-10) and concentration (1x10-4-5.5x10-4) Molar that comply with Lambert-Beers Law. A stoichiometry of the complexes has comprehended in relation to mole ratio which has gotten from spectroscopic investigations of the complex has solutions. The ratio of metal: ligand was achieved with (1:1) for all complexes. The metal ions complexes were characterized by FTIR, UV-Visible, molar conductance, atomic absorption, magnetic susceptibility, elemental analysis C.H.N.S techniques. From the results of physico-chemical and spectral techniques, octahedral geometry except with Pd2+ was square planar and tetrahedral shape with Ag+ have been proposed for these metal complexes.