الفهرس 
Title: Preparation and characterization of some Schiff base metal complexes derived from 2,6-diaminopyridine and evaluation of their biological activity
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Abstract
This work had been carried out to investigate the coordination behaviour of novel series of metal complexes of Schiff base compounds, (L1) [(N2Z)- N2,N6-bis(3-amino-4,5-dimethyl-1-phenyl-1H-pyrrol-2(5H)-ylidene)pyridine- 2,6diamine], derived from 2,6-diaminopyridine and 4-aminoantipyriene and (L2) [3-((6-aminopyridin-2-yl)imino)-1,3-diphenylpropan-1-one], derived from 2,6- diaminopyridine and dibenzoylmethane, towards some bi- and trivalent metal ions like Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II). The solid chelates of the different ligands were prepared and subjected to many analytical techniques such as elemental analyses, mass spectroscopy, ESR, IR, 1 H NMR and solid reflectance spectra, magnetic moment, molar conductance, XRD and thermal analyses techniques. The chelates were found to have octahedral geometry except Zn complex. New ligands and their chelates were subjected to thermal analyses (TG and DTG). The biological activity (antimicrobial activity) of the new Schiff base lignads and thier metal complexes were also screened