Nitro group as a redox switch in urea-based receptors of anions.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F21%3A00547278" target="_blank" >RIV/67985858:_____/21:00547278 - isvavai.cz</a>
Alternative codes found
RIV/61388955:_____/21:00548169 RIV/60461373:22340/21:43923360
Result on the web
<a href="http://hdl.handle.net/11104/0324172" target="_blank" >http://hdl.handle.net/11104/0324172</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jelechem.2021.115816" target="_blank" >10.1016/j.jelechem.2021.115816</a>
Alternative languages
Result language
angličtina
Original language name
Nitro group as a redox switch in urea-based receptors of anions.
Original language description
A nitro group was used as an electrochemical binding/release switch in urea-based receptors for anions. The oxidized and reduced forms of the receptors were thoroughly studied, evaluating the impact of structural features on the binding affinity upon redox modification. In the case of a nitro group in the p- position to the urea moiety, the association constant of the oxidized form is up to 80 times higher than the value measured for the reduced form. The possible application of such an anion binding affinity switch was tested electrochemically in reduction of the nitro group up to the hydroxylamine stage. The presence of acidic urea protons induces a three-step auto-protonation mechanism, however, the complexation of dihydrogen phosphate prevents the urea proton dissociation, which leads to a standard two-step reduction process. Taking advantage of redox-sensitive NO2 chromophore, the whole process was also monitored using spectroelectrochemical measurements.
Czech name
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Czech description
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Classification
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/GA20-07833S" target="_blank" >GA20-07833S: New nanomaterials for anion separation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
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 Electroanalytical Chemistry
ISSN
1572-6657
e-ISSN
1873-2569
Volume of the periodical
902
Issue of the periodical within the volume
1 DEC
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
115816
UT code for WoS article
000718944400005
EID of the result in the Scopus database
2-s2.0-85118347385