An 2-(2′-aminophenyl)benzoxazole-based OFF-ON fluorescent chemosensor for Zn2+ in aqueous solution
An 2-(2′-aminophenyl)benzoxazole-based OFF-ON fluorescent chemosensor for Zn2+ in aqueous solution
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DOI:
10.1039/c0ob00983k
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发表时间:
2011-01-01
影响因子:
3.2
通讯作者:
Guo, Wei
中科院分区:
文献类型:
--
作者:
Chen, Maliang;Lv, Xin;Guo, Wei
A water-soluble fluorescent sensor, 1, based on the "receptor-spacer-fluorophore" [2-(2'-aminophenyl)benzoxazole-amide-2-picolylamine] sensor platform, demonstrates the high sensitivity for Zn2+ with a 25-fold fluorescence enhancement upon chelation to Zn2+ and also exhibits high selectivity to Zn2+ over other metal ions. X-ray crystal structure of Zn2+ complex reveals that the amide oxygen (O2) cooperates with 2-picolylamine unit (N3, N4) as a receptor bind Zn2+.