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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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&apos;(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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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&apos;(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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Inorganica Chimica Acta

ISSN

0020-1693

e-ISSN

—

Svazek periodika

455

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

298-306

Kód UT WoS článku

000389167100037

EID výsledku v databázi Scopus

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