Synthesis, Spectral Characterization and Evaluation of Biological Effect of Some New Azo and Azo-Metal Complexes with Co+2, Ni+2 and Cu+2 Derived from 4, 6-Dihydroxy Pyrimidine

Document Type : Original Article

Authors

1 Department of Engineering Science, Faculty of Engineering, East Guilan, University of Guilan, Roodsar, Iran

2 Faculty of Basic Sciences, University of Guilan, Rasht, Iran

3 Department of Textile Engineering, Faculty of Chamran, Rasht Branch, Technical and Vocational University (TUV), Guilan, Iran

Abstract

Engineering and biological properties of pyrimidines have stimulated chemists to develop the chemistry of these compounds as dyes and organic-metal complexes. Metal complexes of monoazo compounds are principally useful as metal complexes for dyeing of protein, polyamide and engineering materials and Countless shades from greenish yellow to deep black can be generated, depending upon the metal, the dye ligands, and the combination of dye ligands in mixed complex dyes. In this research for the first time a number of new azo dyes were synthesized by coupling 4, 6- dihydroxy pyrimidine with diazotized heterocyclic aromatic and nonheterocyclic aromatic amines. Then one of the synthesized dyes and also 4, 6-dihydroxypyrimidine was used as ligands to preparing some new Azo and Azo-metal (Cupper (II), Nickel (II) and cobalt (II)) complexes. Studies have shown that some metals such as Copper (II) reacts with the other nitrogen and oxygen atoms in the pyrimidine ring at a ratio of (3: 2) in addition to the covalent coordination with the azo group and the hydroxy pyrimidine group. The structures of all synthesized compounds were confirmed by instrumental and elemental analysis (C.H.N.). The antibacterial activity of the selected products was examined. Some products contain donor group like methyl exhibit promising activities. 

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