A new fluorescent chemosensor for fluoride anion based on a pyrrole-isoxazole derivative.
A new fluorescent chemosensor for fluoride anion based on a pyrrole-isoxazole derivative.
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DOI:
10.3762/bjoc.7.8
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发表时间:
2011-01-12
影响因子:
2.7
通讯作者:
Trofimov BA
中科院分区:
文献类型:
--
作者:
Yang Z;Zhang K;Gong F;Li S;Chen J;Ma JS;Sobenina LN;Mikhaleva AI;Yang G;Trofimov BA
Molecules containing polarized NH fragments that behave as anion-binding motifs are widely used as receptors for recognition and sensing purposes in aprotic solvents. We present here a new example of a receptor, 3-amino-5-(4,5,6,7-tetrahydro-1H-indol-2-yl)isoxazole-4-carboxamide (receptor 1), which contains pyrrole, amide and amino subunits. This receptor shows both changes in its UV–vis absorption and fluorescence emission spectra upon the addition of F−, resulting in highly selectivity for fluoride detection over other anions, such as Cl−, Br−, I−, HSO4−, H2PO4− and AcO− in CH3CN. 1H NMR titration, time-dependent density functional theory (TDDFT) calculations and other experiments confirm that the sensing process is brought about by deprotonation of the pyrrole-NH in receptor 1.
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影响因子:
2.8
作者:
Bauernschmitt, R;Ahlrichs, R
通讯作者:
Ahlrichs, R
影响因子:
2.1
作者:
Sobenina, LN;Drichkov, VN;Trofimov, BA
通讯作者:
Trofimov, BA
影响因子:
4.3
作者:
Schmuck, C;Machon, U
通讯作者:
Machon, U
影响因子:
2.8
作者:
Chen, Chun-Lin;Lin, Tzu-Pin;Sun, Shih-Sheng
通讯作者:
Sun, Shih-Sheng
影响因子:
4.9
作者:
Camiolo, S;Gale, PA;Shi, AJ
通讯作者:
Shi, AJ