Mixed ligand complexes of 5-arylazo-8-hydroxyquinoline and α-amino acids with Co(II), Ni(II) and Cu(II)

A. S.A. Zidan*, A. I. El-Said, M. S. El-Meligy, A. A.M. Aly, O. F. Mohammed

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Ten mixed ligand complexes of the type [M(X-QA)(aa)] and [Ni(X-QA)2(Haa)(H2O)], where X-HQA=5-arylazo-8-hydroxyquinoline derivatives, M=Co(II) or Cu(II) and Haa=glycine (gly), alanine (ala) or methionine (met), have been prepared. The complexes have been characterized by elemental analysis, IR and electron spectra and thermal analysis. A tetrahedral structure has been proposed for the cobalt(II) and copper(II) complexes with bidentate coordination of amino acids. The nickel(II) complexes have been assigned an octahedral structure with the amino acids acting as monodentate ligands. The thermal behaviour of the complexes has been studied before and after γ-irradiation.

Original languageEnglish (US)
Pages (from-to)665-679
Number of pages15
JournalJournal of Thermal Analysis and Calorimetry
Volume62
Issue number3
StatePublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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