Browsing by Author "Abebe, Alamirew"

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    Synthesis and Characterization of Nickel (Ii) Complexes Derived From 4(5)-Imidazolecarboxaldehyde and 2,4-Dihydroxybenzophenone Based Thiosemicarbazones
    (Addis Ababa University, 2018-03-02) Abebe, Alamirew; Chebude, Yonas (PhD)
    In this work, two new Ni(II) complexes of 4(5)-imidazolecarboxaldehydeand 2, 4-dihydroxybenzophenone based thiosemicarbazones were synthesized and characterized using different techniques such as elemental analysis, atomic absorption spectroscopy, IRandNMR spectra and other physio-chemical methods. The first ligand (L1): (E)-1-((1H-imidazol-1-yl)methylene)thiosemicarbazide was synthesized by condensing 4(5)-imidazolecarboxaldehyde and thiosemicarbazide together, while the second ligand (L2): (E)-1-((2,4-dihydroxybenzophenyl)(phenyl)methylene)thiosemicarbazide was prepared by the condensation of 2, 4-dihidroxybenzophenone with thiosemicarbazide both in equimolar ratios. Finally, based ontheanalyzedand interpreted data, a square planargeometry was proposed for both Ni[L1] and Ni[L2]complexes.