ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Cobalt(II), Nickel(II), and Copper(II) Complexes with Some 5-Aminopyrazole-Containing Azo Compounds

N. M. Rageh, A. A. Mohamad, S. A. Ibrahim, and Y. H. Ebead

Department of Chemistry, Faculty of Science, South Valley University, Qena, Egypt

Abstract: The Co(II), Ni(II), and Cu(II) chelates with four heterocyclic azo compounds have been prepared and characterized. Characterization of the solid so obtained was accomplished by elemental and thermogravimetric analysis, electronic and IR spectra, as well as conductivity measurements. The dyes are characterized by high tendency towards complex formation with neutral molecules coordinated to the metal ion as bidentate ligands. The different bands observed in the visible spectra of methanolic solutions of the complexes have been assigned to the possible electronic transition type (L-M CT and d-d).

Full paper in Portable Document Format: 545a296.pdf

Chemical Papers 54 (5) 296–301 (2000)