pH-Potentiometric Investigation towards Chelating Tendencies of p-Hydroquinone and Phenol Iminodiacetate Copper(II) Complexes
Joint Authors
Drouza, Chryssoula
Keramidas, Anastasios D.
Stylianou, Marios
Source
Bioinorganic Chemistry and Applications
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-06-08
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Copper ions in the active sites of several proteins/enzymes interact with phenols and quinones, and this interaction is associated to the reactivity of the enzymes.
In this study the speciation of the Cu2+ with iminodiacetic phenolate/hydroquinonate ligands has been examined by pH-potentiometry.
The results reveal that the iminodiacetic phenol ligand forms mononuclear complexes with Cu2+ at acidic and alkaline pHs, and a binuclear Ophenolate-bridged complex at pH range from 7 to 8.5.
The binucleating hydroquinone ligand forms only 2 : 1 metal to ligand complexes in solution.
The pK values of the protonation of the phenolate oxygen of the two ligands are reduced about 2 units after complexation with the metal ion and are close to the pK values for the copper-interacting tyrosine phenol oxygen in copper enzymes.
American Psychological Association (APA)
Stylianou, Marios& Keramidas, Anastasios D.& Drouza, Chryssoula. 2010. pH-Potentiometric Investigation towards Chelating Tendencies of p-Hydroquinone and Phenol Iminodiacetate Copper(II) Complexes. Bioinorganic Chemistry and Applications،Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-447636
Modern Language Association (MLA)
Stylianou, Marios…[et al.]. pH-Potentiometric Investigation towards Chelating Tendencies of p-Hydroquinone and Phenol Iminodiacetate Copper(II) Complexes. Bioinorganic Chemistry and Applications No. 2010 (2010), pp.1-8.
https://search.emarefa.net/detail/BIM-447636
American Medical Association (AMA)
Stylianou, Marios& Keramidas, Anastasios D.& Drouza, Chryssoula. pH-Potentiometric Investigation towards Chelating Tendencies of p-Hydroquinone and Phenol Iminodiacetate Copper(II) Complexes. Bioinorganic Chemistry and Applications. 2010. Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-447636
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-447636