Author/Authors :
Lang، نويسنده , , Kamil and Cu??nov?، نويسنده , , Petra and Dudi?، نويسنده , , Miroslav and Pro?kov?، نويسنده , , Petra and Stibor، نويسنده , , Ivan and ?t’astn?، نويسنده , , V?clav and Lhot?k، نويسنده , , Pavel، نويسنده ,
Abstract :
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.
Keywords :
dimerization , Anion complexation , Receptor , Calixarene
