National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Aniontové receptury založené na močovinové funkci
Božon, M. ; Káš, M. ; Lang, Kamil ; Lhoták, P.
New bis(ureido)calix[4]arene based fluorescent anion receptor containing two pyrene units was prepared.
Neobvyklá stechiometrie kalixaren-močovinových derivátů
Dudič, M. ; Lang, Kamil
Calix[4]arenes bearing two p-nitrophenyl-ureido functions at the upper rim are effective anion binders. The stoichiometry of complexation depends on the substitution pattern (distal vs proximal) and anion concentration. While the distally substituted receptor forms 1:1 complexes with anions, the corresponding proximal derivative prefers the 2:1 stoichiometry (calixarene: anion) under identical conditions.
Azobenzen-kalixareny pro vázání kationtů
Kroupa, J. ; Morávek, J. ; Lhoták, P. ; Stibor, I. ; Lang, Kamil
Azoderivatives of (thia)calix[4]arenes are highly preorganized receptors for cations.
Kalixarenní konjugáty jako všestranný molekulární receptor pro anionty
Lang, Kamil ; Stibor, I. ; Lhoták, P.
The binding affinity towards selected anions was studied using UV-vis and 1H /nmr spectroscopy.

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