Synthesis, spectral, magnetic properties, electrochemical evaluation and SOD mimetic activity of four mixed-ligand Cu(II) complexes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911356" target="_blank" >RIV/00216275:25310/17:39911356 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.ica.2016.10.034" target="_blank" >http://dx.doi.org/10.1016/j.ica.2016.10.034</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ica.2016.10.034" target="_blank" >10.1016/j.ica.2016.10.034</a>

Result language
angličtina
Original language name
Synthesis, spectral, magnetic properties, electrochemical evaluation and SOD mimetic activity of four mixed-ligand Cu(II) complexes
Original language description
Four new methylsalicylato copper(II) complexes with formula [Cu(4-Mesal)(2)(2-Meim)(2)] (1), [Cu(4-Mesal)(2)(im)(2)] (2), [Cu(3-Mesal)(2)(bzim)(2)]center dot 2H(2)O (3), [Cu(5-Mesal)(2)(im)(2)](n) (4) (where 3-Mesal(-) = 3-methylsalicylato, 4(-)Mesal(-) = 4-methylsalicylato, 5-Mesal(-) = 5-methylsalicylato anion, im = imidazole, 2-Meim = 2-methylimidazole and bzim = benzimidazole) are reported. The solid state complexes were characterized by IR, UV-Vis, EPR, X-ray and magnetic measurements. Despite common coordination environment {CuO2N2O'(2)} different supramolecular structures were found for the compounds: 1 is a 1-D supramolecular chain, 2 and 3 form 2-D supramolecular networks and 4 is a 1D coordination polymer. The superoxide dismutase-like (SOD-like) activity of complexes 1-4 was studied in solution by NBT assay, compared with the activity of the parent ligand, copper acetate and native SOD enzyme and correlated to the redox stability determined by cyclic voltammetry. The exceptionally low SOD-like activity of 3, its lower redox reversibility and higher electron-withdrawing ability could be related to the lowest axial distortion of its coordination environment.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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