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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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