Lithium ionophore VIII as an extraordinarily strong receptor for the trivalent europium cation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F15%3A43899361" target="_blank" >RIV/60461373:22340/15:43899361 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60460709:41330/15:68280

Výsledek na webu

<a href="http://www.tandfonline.com/doi/abs/10.1080/00268976.2014.944953#.VLUmcMlVncs" target="_blank" >http://www.tandfonline.com/doi/abs/10.1080/00268976.2014.944953#.VLUmcMlVncs</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00268976.2014.944953" target="_blank" >10.1080/00268976.2014.944953</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Lithium ionophore VIII as an extraordinarily strong receptor for the trivalent europium cation

Popis výsledku v původním jazyce

On the basis of extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium Eu3+(aq) + 3A(-)(aq) + 1(nb) LEFTWARDS ARROW OVER RIGHTWARDS ARROW 1 center dot Eu3+(nb) + 3A-(nb) occurring in the two-phasewater-nitrobenzene system (A(-) = CF3SO3-; 1 = lithium ionophore VIII; aq = aqueous phase, nb = nitrobenzene phase) was determined as log K-ex (1 center dot Eu3+, 3A(-)) = 2.5 +/- 0.1. Furthermore, the extremely high stability constant of the 1 center dot Eu3+ complex in nitrobenzene saturated with water was calculated: log beta(nb) (1 center dot Eu3+) = 15.6 +/- 0.1. Finally, by using DFT calculations, the most probable structure of the cationic complex species 1 center dot Eu3+ was derived. In the resulting complex, the 'central' cation Eu3+ is bound by six very strong bond interactions to the corresponding six oxygen atoms of the parent ligand 1. It is evident that this exceptionally effective receptor 1 for the Eu3+ cation could be

Název v anglickém jazyce

Lithium ionophore VIII as an extraordinarily strong receptor for the trivalent europium cation

Popis výsledku anglicky

On the basis of extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium Eu3+(aq) + 3A(-)(aq) + 1(nb) LEFTWARDS ARROW OVER RIGHTWARDS ARROW 1 center dot Eu3+(nb) + 3A-(nb) occurring in the two-phasewater-nitrobenzene system (A(-) = CF3SO3-; 1 = lithium ionophore VIII; aq = aqueous phase, nb = nitrobenzene phase) was determined as log K-ex (1 center dot Eu3+, 3A(-)) = 2.5 +/- 0.1. Furthermore, the extremely high stability constant of the 1 center dot Eu3+ complex in nitrobenzene saturated with water was calculated: log beta(nb) (1 center dot Eu3+) = 15.6 +/- 0.1. Finally, by using DFT calculations, the most probable structure of the cationic complex species 1 center dot Eu3+ was derived. In the resulting complex, the 'central' cation Eu3+ is bound by six very strong bond interactions to the corresponding six oxygen atoms of the parent ligand 1. It is evident that this exceptionally effective receptor 1 for the Eu3+ cation could be

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Molecular Physics

ISSN

0026-8976

e-ISSN

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Svazek periodika

113

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

89-94

Kód UT WoS článku

000346294600011

EID výsledku v databázi Scopus

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