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Coordination modes of histidine- or methioninehydroxamic acids in copper(II) mixed-ligand complexes with ethylenediamine in aqueous solution
- Source :
-
Polyhedron . Sep2007, Vol. 26 Issue 15, p4223-4227. 5p. - Publication Year :
- 2007
-
Abstract
- Abstract: The stability constants and coordination modes of the mixed-ligand complexes formed by copper(II) ion and ethylenediamine as a primary ligand and methioninehydroxamic acid (Metha) or histidinehydroxamic acid (Hisha) as a secondary ligand L were determined by potentiometric titration, UV–Vis and EPR spectroscopy. The obtained results suggest the formation of mixed-ligand species in basic solution with 4N coordination – both amine and hydroxamic nitrogens of Metha or Hisha (NH2, Nha) and two amine nitrogens of en (2×NH2) in the equatorial plane. [Copyright &y& Elsevier]
- Subjects :
- *COPPER
*LIGANDS (Chemistry)
*ETHYLENEDIAMINE
*POTENTIOMETRY
Subjects
Details
- Language :
- English
- ISSN :
- 02775387
- Volume :
- 26
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Polyhedron
- Publication Type :
- Academic Journal
- Accession number :
- 26414226
- Full Text :
- https://doi.org/10.1016/j.poly.2007.05.024