About: Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands

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About: Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Properties of the EuIII/EuII redox couple, in the presence of one of a group of different ligands of ligands, were investigated using several electrochemical methods. Ligands used in this study included cyclodextrins, polyazamacrocycles and poly(aminocarboxylates). The poly(aminocarboxylate) containing ligands currently used as MRI contrast agents (DTPA, DOTA) as well as newly developed ligands [1,4-DOTA- (GAC12)2, 1,7-DOTA(GAC12)2] with potential use as MRI contrast agents were studied. Cyclic voltammetry, phase sensitive AC voltammetry, DC polarography and highly effective electrochemical impedance spectroscopy were utilised to elucidate the mechanism of the reduction/oxidation of the Eu ion in the presence of these compounds. Stability constants of the EuIII and/or EuII complexes and heterogeneous rate constants of the charge transfer were determined. Theoretical calculations of molecular volumes and diffusion coefficients were performed as well. Properties of the EuIII/EuII redox couple, in the presence of one of a group of different ligands of ligands, were investigated using several electrochemical methods. Ligands used in this study included cyclodextrins, polyazamacrocycles and poly(aminocarboxylates). The poly(aminocarboxylate) containing ligands currently used as MRI contrast agents (DTPA, DOTA) as well as newly developed ligands [1,4-DOTA- (GAC12)2, 1,7-DOTA(GAC12)2] with potential use as MRI contrast agents were studied. Cyclic voltammetry, phase sensitive AC voltammetry, DC polarography and highly effective electrochemical impedance spectroscopy were utilised to elucidate the mechanism of the reduction/oxidation of the Eu ion in the presence of these compounds. Stability constants of the EuIII and/or EuII complexes and heterogeneous rate constants of the charge transfer were determined. Theoretical calculations of molecular volumes and diffusion coefficients were performed as well. (en)
Title	Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands (en)
skos:prefLabel	Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands Electrochemical Study of the EuIII/EuII Redox Properties of Complexes with Potential MRI Ligands (en)
skos:notation	RIV/61388955:_____/13:00393164!RIV14-GA0-61388955
http://linked.open...avai/predkladatel	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA203/09/1607)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Ramešová, Šárka Sokolová, Romana Gál, Miroslav Kolivoška, Viliam
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	72367
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/13:00393164
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	europium; cyclic voltammetry; nitrogen heterocycle (en)
http://linked.open.../riv/klicoveSlovo	nitrogen heterocycle europium cyclic voltammetry
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[BDE3BF1112EA]
http://linked.open...i/riv/nazevZdroje	European Journal of Inorganic Chemistry
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Electrochemistry of natural pigments and their host-guest complexes.
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	2013
http://linked.open...iv/tvurceVysledku	Gál, Miroslav Kolivoška, Viliam Sokolová, Romana Ramešová, Šárka Kielar, F.
http://linked.open...ain/vavai/riv/wos	000320275000014
issn	1434-1948
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/ejic.201300252

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