Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/9407
Title: Donor atom electrochemical contribution to redox potentials of square pyramidal vanadyl complexes
Authors: Vlasiou, Manolis 
Drouza, Chryssoula 
Kabanos, Themistoklis 
Keramidas, Anastasios D. 
Major Field of Science: Natural Sciences
Field Category: Biological Sciences
Keywords: Additivity rule;Cyclic voltammetry;Electrochemistry;Potential prediction;Vanadium;Vanadyl
Issue Date: 26-Jan-2015
Source: Journal of Inorganic Biochemistry, 2015, vol. 147, pp. 39-43.
Volume: 147
Start page: 39
End page: 43
DOI: http://dx.doi.org/10.1016/j.jinorgbio.2015.01.010
Journal: Journal of Inorganic Biochemistry 
Abstract: A simple donor atom additivity relationship has been used to calculate the donor atom electrochemical contribution (DEC) of the Oac (acetylacetonate-enolic oxygen), OPh (phenolic oxygen), SPh (mercaptophenol sulfur), Nam (deprotonate amide nitrogen), Nim (imine nitrogen) and Npy (pyridine nitrogen) to the redox processes of the square pyramidal vanadyl complexes. The study focuses on the amidate vanadyl complexes because of (a) their biological interest and (b) the existence of data from plethora complexes studied in great details. The electrochemical contributions for the vanadyl oxidation and reduction processes increase following the same order, OPh ~ Oac(enolic) < SPh ~ Nam < Nim < Npy. These values predict the electrochemical potentials of square pyramidal vanadyl complexes with high accuracy. Octahedral complexes with the same equatorial environment show significant shift of the oxidation potentials to lower values. The DEC influence to the square pyramidal vanadyls' electrochemical potentials has been evaluated.
URI: https://hdl.handle.net/20.500.14279/9407
ISSN: 01620134
DOI: 10.1016/j.jinorgbio.2015.01.010
Rights: © Elsevier
Attribution-NonCommercial-NoDerivs 3.0 United States
Type: Article
Affiliation : University of Cyprus 
Cyprus University of Technology 
University of Ioannina 
Publication Type: Peer Reviewed
Appears in Collections:Άρθρα/Articles

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