calixarene; dendrimer; amide; ion recognition; UV-Vis spectrum
【摘要】
Dendritic p-t-butylcalix[n]arene amide derivatives with terminal amino groups of the first and second generations were synthesized by using divergent methods from ammonolysis of ethyl calixarylacetate with 1,6-diaminohexane and Michael addition of methyl acrylate. Their structures were confirmed by IR, 1H NMR. The recognition properties of these amide derivatives for several kinds of metal ions were studied with UV–Vis spectroscopy. The results showed a great affinity for soft Ag+ and UO22+ ions and formed 1:2 or 1:3 stoichiometric complexes.