عنوان المقالة: Synthesis, Structural Study, and Biological Activity Evaluation of VO(II), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II) Complexes with New Schiff Base Ligand Derived from Pyrazine
Bushra M. Fayyadh , Wurood A. Jaafar, Basima M. Sarhan
الملخص الانجليزي
New Schiff base [3-(3-acetylthioureido)pyrazine-2-carboxylic acid][L] has been prepared through 2 stages, the chloro acetyl
chloride has been reacting with the ammonium thiocyanate in the initial phase for producing precursor [A], after that [A] has
been reacting with the 3-amino pyrazine-2-carboxilic acid to provide a novel bidentate ligand [L], such ligand [L] has been
reacting with certain metal ions in the Mn(II), VO(II), Ni(II), Co(II), Zn(II), Cu(II), Hg(II), and Cd(II) for providing series of
new metal complexes regarding general molecular formula [M(L)2XY], in which; VO(II); X=SO4,Y=0, Co(II), Mn(II), Cu(II),
Ni(II), Cd(II), Zn(II), and Hg(II); Y=Cl, X=Cl. Also, all the compounds were characterized through spectroscopic techniques
[ IR, UV-Vis, atomic absorption], conductivity measurements, chloride content, elemental micro analysis in addition to the
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H,13C-NMR for ligand [L] only. Based on the results taken from the methods mentioned above, the proposed geometrical
structures with regard to each prepared complex have been in the agreement with octahedral formula.
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