Synthesis And Spectral Study Of Cr(Iii), Mn(Ii), Ni(Ii) And Cu(Ii) Complexes Of Schiff Base Derived From Diacetylmonoxime With Thiourea
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Schiff base, Metal Complexes, 1-((2E,3E)-3-(hydroxyimino)butan-2-ylidene)thiourea
Abstract
Transition metal complexes of Cr(III), Mn(II), Ni(II) and Cu(II) of the Schiff base; 1-((2E,3E)-3-(hydroxyimino)butan-2-ylidene)thiourea were synthesized and characterized on the basis of physical characteristics, molar conductivity, micro-analytical data(CHN), magnetic moment measurements, Mass spectra, 1HNMR, IR and UV-Vis spectrum data. The elemental analysis data showed the complexes are in 1:1 [M:L] ratio. The molar conductance values revealed the complexes of Cr(III), Mn(II), Ni(II) are electrolyte in nature while the Cu(II) complex is non-electrolyte. The results of magnetic moment measurements showed that, the complexes of Cr(III), Mn(II), Ni(II) and Cu(II) have unpaired electrons. The electronic spectral results of the Schiff base ligand and its complexes suggested that, the Cr(III), Ni(II), Mn(II) and Cu(II) complexes have an octahedral structure.
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