Complexation of Eu3 with a macrocyclic lactam receptor: Experimental and theoretical study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895016" target="_blank" >RIV/60461373:22340/13:43895016 - isvavai.cz</a>
Alternative codes found
RIV/61388955:_____/13:00398198 RIV/61389013:_____/13:00398198 RIV/60460709:41330/13:60907
Result on the web
<a href="http://dx.doi.org/10.1016/j.molstruc.2013.01.032" target="_blank" >http://dx.doi.org/10.1016/j.molstruc.2013.01.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molstruc.2013.01.032" target="_blank" >10.1016/j.molstruc.2013.01.032</a>
Alternative languages
Result language
angličtina
Original language name
Complexation of Eu3 with a macrocyclic lactam receptor: Experimental and theoretical study
Original language description
From extraction experiments and gama-activity measurements, the extraction constant corresponding to the equilibrium Eu3+(aq) + 3A?(aq) + 1 (nb) ? 1?Eu3+(nb) + 3A?(nb) taking place in the two-phase water-nitrobenzene system (A- = CF3SO3- ; 1 = macrocyclic lactam receptor - see Scheme 1; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log Kex (1?Eu3+, 3A?) = ?4.1 +- 0.1. Further, the stability constant of the 1?Eu3+ cationic complex in nitrobenzene saturated with water was calculated for atemperature of 25 °C: log betanb (1?Eu3+) = 9.0 +- 0.1. Finally, by using DFT calculations, the most probable structure of the cationic complex species 1?Eu3+ was derived. In the resulting 1?Eu3+ complex, the "central" cation Eu3+ is bound by five bond interactions to two ethereal oxygen atoms and two carbonyl oxygens, as well as to one carbon atom of the corresponding benzene ring of the parent macrocyclic lactam receptor 1 via cation-pí interaction.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CB - Analytical chemistry, separation
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Molecular Structure
ISSN
0022-2860
e-ISSN
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Volume of the periodical
1038
Issue of the periodical within the volume
není
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
4
Pages from-to
216-219
UT code for WoS article
000316509200029
EID of the result in the Scopus database
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