Anion recognition based on phenolic hydroxyl group in competitive media

Autor: Xin-Juan Li, Nankai Xi, Lei-Lei Liu, Xiufang Xu, Xuefang Shang, Jinlian Zhang
Rok vydání: 2011
Předmět:
Zdroj: Journal of Inclusion Phenomena and Macrocyclic Chemistry. 73:185-192
ISSN: 1573-1111
0923-0750
DOI: 10.1007/s10847-011-0041-4
Popis: Two novel artificial receptors, one containing phenolic hydroxyl group and diamide (1), the other only containing diamide (2), were designed and synthesized. The binding ability evaluated by UV–vis and fluorescence titration experiments in dry DMSO revealed that compound 1 could selectively recognize AcO−. In particular, the binding ability can also be detected in the DMSO/H2O solution by UV–vis. The interference experiment result showed that the binding ability was not influenced by the existence of other anions. In contrast, there were no detectable interaction between receptor 2 and anions. The further insights to the nature of interaction between receptor 1 and AcO− were investigated by 1H NMR titration experiments and theoretical investigation, which demonstrated receptor 1 complexed AcO− through the synergistic hydrogen bonding interaction of OH and NH.
Databáze: OpenAIRE
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