Cation-complexation behavior of template-assembled synthetic G-quartets.
J Org Chem
; 74(15): 5211-8, 2009 Aug 07.
Article
em En
| MEDLINE
| ID: mdl-19518105
ABSTRACT
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 Sr(2+), and dimeric assemblies with larger cations such as Cs+. Their structures were determined by using (1)H 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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sódio
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Estrôncio
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Césio
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Quadruplex G
Idioma:
En
Revista:
J Org Chem
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Canadá