Zinc binding-induced near-IR emission from excited-state intramolecular proton transfer of a bis(benzoxazole) derivative

被引：109

作者：

Xu, Yongqian

Pang, Yi ^{[1
]}

机构：

[1] Univ Akron, Dept Chem, Akron, OH 44325 USA

来源：

CHEMICAL COMMUNICATIONS | 2010年 / 46卷 / 23期

基金：

美国国家科学基金会;

关键词：

FLUORESCENT SENSOR; CHARGE-TRANSFER; BENZOXAZOLE;

D O I：

10.1039/c003230a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A bis(benzoxazole) derivative with metal-chelating ligand (DPA), Zinhbo-1, exhibits a large fluorescence turn-on effect (up to 10-fold) upon zinc-binding. The metal chelation enables excited state intramolecular proton transfer (ESIPT), giving an additional emission band in the near-IR region (similar to 710 nm) with a large Stokes shift (ca. 230 nm).

引用

页码：4070 / 4072

页数：3

共 15 条

[11] Emission ratiometric imaging of intracellular zinc: Design of a benzoxazole fluorescent sensor and its application in two-photon microscopy
Taki, M
Wolford, JL
O'Halloran, TV
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (03) : 712 - 713
[12] Valeur B., 2001, MOL FLUORESCENCE PRI, P99, DOI DOI 10.1002/3527600248
[13] Williams D.L., 1970, J PHYS CHEM, V74, P4473
[14] Fluorescence sensing of anions based on inhibition of excited-state intramolecular proton transfer
Wu, Yunkou
Peng, Xiaojun
Fan, Jiangli
Gao, Shang
Tian, Maozhong
Zhao, Jianzhang
Sun, Shiguo
[J]. JOURNAL OF ORGANIC CHEMISTRY, 2007, 72 (01) : 62 - 70
[15] Optical switching of 2-(2′-hydroxyphenyl) benzoxazole in different solvents
Zhang, G
Wang, H
Yu, Y
Xiong, F
Tang, G
Chen, W
[J]. APPLIED PHYSICS B-LASERS AND OPTICS, 2003, 76 (06): : 677 - 681

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