Experimental and theoretical study on interaction of the potassium cation with antamanide
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F14%3A43897031" target="_blank" >RIV/60461373:22340/14:43897031 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41330/14:64642 RIV/60461373:22810/14:43897031
Result on the web
<a href="http://dx.doi.org/10.1016/j.chemphys.2014.02.002" target="_blank" >http://dx.doi.org/10.1016/j.chemphys.2014.02.002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.chemphys.2014.02.002" target="_blank" >10.1016/j.chemphys.2014.02.002</a>
Alternative languages
Result language
angličtina
Original language name
Experimental and theoretical study on interaction of the potassium cation with antamanide
Original language description
On the basis of extraction experiments and gamma-activity measurements, the extraction constant corresponding to the equilibrium K+ (aq) + 1 center dot Na+ (nb) reversible arrow 1 center dot K+ (nb) + Na+ (aq) taking part in the two-phase water-nitrobenzene system (1 = antamanide; aq = aqueous phase, nb = nitrobenzene phase) was evaluated as log K-ex (K+, 1 center dot Na+) = 0.2 +/- 0.1. Further, the stability constant of the 1 center dot K+ complex in nitrobenzene saturated with water was calculated for a temperature of 25 degrees C: log beta(nb) (1 center dot K+) = 4.7 +/- 0.2. Finally, by using quantum mechanical DFT calculations, the most probable structure of the cationic complex species 1 center dot K+ was derived. In the resulting complex, the "central'' cation K+ is bound by four bond interactions to the corresponding four carbonyl oxygen atoms of the parent ligand 1. Besides, the whole 1 center dot K+ complex structure is stabilized by two intramolecular hydrogen bonds. The in
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
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Physics
ISSN
0301-0104
e-ISSN
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Volume of the periodical
433
Issue of the periodical within the volume
neuvedeno
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
4
Pages from-to
85-88
UT code for WoS article
000333405100010
EID of the result in the Scopus database
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