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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F14%3A00437198%21RIV15-AV0-61388955
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Calixarenes are organic molecules which contain several aromatic units (in this work four) connected by methylene („calixarenes“) or sulfur („thiacalixarenes“) bridges. Calix[4]arenes can exist in four defined conformations: cone-, partial cone-, 1,2- and 1,3-alternating (Fig. 1). The conformational stability of a (thia)calix[4]arene is controlled by the size of the substituents on the upper or the lower rim, or by other interactions (e.g. hydrogen bonds). These compounds are very attractive for supramolecular chemists, since they have the shape of a cavity, being able to exhibit host-guest interaction according to the substitution 1,2. The calixarene skeleton itself is not reducible. Therefore it´s necessary to introduce a suitable redox probe in the calixarene frame in order to use electrochemical methods for investigations of calixarene properties. For the purpose of this study the nitro group was chosen because its electrochemical reduction proceeds easily in a well-defined way. Calixarenes are organic molecules which contain several aromatic units (in this work four) connected by methylene („calixarenes“) or sulfur („thiacalixarenes“) bridges. Calix[4]arenes can exist in four defined conformations: cone-, partial cone-, 1,2- and 1,3-alternating (Fig. 1). The conformational stability of a (thia)calix[4]arene is controlled by the size of the substituents on the upper or the lower rim, or by other interactions (e.g. hydrogen bonds). These compounds are very attractive for supramolecular chemists, since they have the shape of a cavity, being able to exhibit host-guest interaction according to the substitution 1,2. The calixarene skeleton itself is not reducible. Therefore it´s necessary to introduce a suitable redox probe in the calixarene frame in order to use electrochemical methods for investigations of calixarene properties. For the purpose of this study the nitro group was chosen because its electrochemical reduction proceeds easily in a well-defined way.
dcterms:title
Electrochemical Reduction of 1,3-Alt-tetranitrothiacalix[4]arenes Electrochemical Reduction of 1,3-Alt-tetranitrothiacalix[4]arenes
skos:prefLabel
Electrochemical Reduction of 1,3-Alt-tetranitrothiacalix[4]arenes Electrochemical Reduction of 1,3-Alt-tetranitrothiacalix[4]arenes
skos:notation
RIV/61388955:_____/14:00437198!RIV15-AV0-61388955
n3:aktivita
n16:I
n3:aktivity
I
n3:dodaniDat
n10:2015
n3:domaciTvurceVysledku
n9:4988094 n9:4441613
n3:druhVysledku
n4:D
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
14116
n3:idVysledku
RIV/61388955:_____/14:00437198
n3:jazykVysledku
n6:eng
n3:klicovaSlova
electrochemistry; 1,3-Alt-tetranitrothiacalix[4]arenes; calixarenes
n3:klicoveSlovo
n7:electrochemistry n7:3-Alt-tetranitrothiacalix%5B4%5Darenes n7:1 n7:calixarenes
n3:kontrolniKodProRIV
[C665DCF39223]
n3:mistoKonaniAkce
Jetřichovice
n3:mistoVydani
Ústí nad Labem
n3:nazevZdroje
Sborník přednášek mezinárodní odborné konference XXXIV. Moderní Elektrochemické Metody
n3:obor
n5:CG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n10:2014
n3:tvurceVysledku
Ludvík, Jiří Liška, Alan
n3:typAkce
n17:EUR
n3:zahajeniAkce
2014-05-19+02:00
s:numberOfPages
5
n19:hasPublisher
Best Servis
n13:isbn
978-80-905221-2-1