期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 74, 期 15, 页码 5211-5218出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo9001245
关键词
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资金
- Natural Sciences and Engineering Research Council of Canada
- Michael Smith Foundation
- Canada Foundation
We report the preparation and solution study of a set of template-assembled synthetic G-quartets (TASQs) bound to different cations. These G-quartet baskets effectively extract cations of different sizes and valencies, They form isolated G-quartets with small cations such as Na+ and Sr2+, and dimeric assemblies with larger cations such as Cs+. Their structures were determined by using H-1 NMR spectroscopy, and their sizes were evaluated by using a series of pulsed-field gradient NMR experiments. The effect of anion has been studied, and the cation selectivities have been investigated by a series of competition experiments.
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