Calix[4]arene-bis(t-octylbenzo-18-crown-6) as an extraordinarily effective macrocyclic receptor for the univalent thallium cation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43897071" target="_blank" >RIV/60461373:22340/14:43897071 - isvavai.cz</a>

Alternative codes found

RIV/60460709:41330/14:64646

Result on the web

<a href="http://dx.doi.org/10.1007/s11224-013-0349-3" target="_blank" >http://dx.doi.org/10.1007/s11224-013-0349-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11224-013-0349-3" target="_blank" >10.1007/s11224-013-0349-3</a>

Result language

angličtina

Original language name

Calix[4]arene-bis(t-octylbenzo-18-crown-6) as an extraordinarily effective macrocyclic receptor for the univalent thallium cation

Original language description

From extraction experiments and -activity measurements, the exchange extraction constant corresponding to the equilibrium Tl+ (aq) + 1 center dot Cs+ (org) a double dagger" 1 center dot Tl+ (org) + Cs+ (aq) taking place in the two-phase water-phenyltrifluoromethyl sulfone (abbrev. FS 13) system (1 = calix[4]arene-bis(t-octylbenzo-18-crown-6); aq = aqueous phase, org = FS 13 phase) was evaluated as log K (ex) (Tl+, 1 center dot Cs+) = 1.7 +/- A 0.1. Further, the extraordinarily high stability constant ofthe 1 center dot Tl+ complex in FS 13 saturated with water was calculated for a temperature of 25 A degrees C: log beta (org)(1 center dot Tl+) = 13.1 +/- A 0.2. Finally, by using quantum mechanical DFT calculations, the most probable structure of the cationic complex species 1 center dot Tl+ was derived. In the resulting 1 center dot Tl+ complex, the "central" cation Tl+ is bound by eight bond interactions to six oxygen atoms from the respective 18-crown-6 moiety and to two carbons of

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

Structural Chemistry

ISSN

1040-0400

e-ISSN

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Volume of the periodical

25

Issue of the periodical within the volume

3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

847-852

UT code for WoS article

000334514700016

EID of the result in the Scopus database

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