Solvent extraction of europium(III) trifluoromethanesulfonate into nitrobenzene by using [2.2.2]paracyclophane – Experimental and theoretical study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F21%3A43922010" target="_blank" >RIV/60461373:22340/21:43922010 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22810/21:43922010 RIV/60460709:41330/21:89934
Result on the web
<a href="https://reader.elsevier.com/reader/sd/pii/S0167732221020043?token=336EB8300BBDD266533F91BD16E6E534906555D7A2760170C1F33BFF79CD0ACC6A58B131D442353D1836D12DB43A2A37&originRegion=eu-west-1&originCreation=20210830105045" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0167732221020043?token=336EB8300BBDD266533F91BD16E6E534906555D7A2760170C1F33BFF79CD0ACC6A58B131D442353D1836D12DB43A2A37&originRegion=eu-west-1&originCreation=20210830105045</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.molliq.2021.117280" target="_blank" >10.1016/j.molliq.2021.117280</a>

Result language
angličtina
Original language name
Solvent extraction of europium(III) trifluoromethanesulfonate into nitrobenzene by using [2.2.2]paracyclophane – Experimental and theoretical study
Original language description
The extraction constant corresponding to the equilibrium Eu3+(aq) + 3A-(aq) + 1(nb) ⇌ 1 Eu3+(nb) + 3A–(nb) occurring in the two-phase water–nitrobenzene system (; 1 = [2.2.2]paracyclophane; aq = aqueous phase, nb = nitrobenzene phase) was determined as log Kex (Eu3+,3A–) = -5.7 ± 0.1. Further, the stability constant of the 1 Eu3+ complex in nitrobenzene saturated with water was calculated as log Knb (1 Eu3+) = 7.4 ± 0.1. Finally, by using quantum chemical calculations, the most probable conformation of the cationic complex species 1 Eu3+ was derived. In the resulting complex, the “central” cation Eu3+, fully located in the cavity of the parent [2.2.2]paracyclophane ligand, is bound to all three benzene rings of [2.2.2]paracyclophane via cation-π interaction.
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
10403 - Physical chemistry

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

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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