Fluorescence detection of iodide anion using a donor-acceptor (D-A) thiourea derivative

被引：11
|
作者：
Yang, Wen [1 ]
Shao, Jie [1 ]
Xu, Yunlong [1 ]
Zhou, Weiqun [1 ]
Xie, Juan [1 ]
机构：
[1] Soochow Univ, Sch Chem & Chem Engn, Suzhou 215123, Peoples R China
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2014年 / 292卷
基金：
中国国家自然科学基金;
关键词：
Donor acceptor (D-A) thiourea; Fluorescence recognition; Iodide anion; Intramolecular charge transfer; SELECTIVE RECOGNITION; TRIPLE FLUORESCENCE; SENSOR; CHEMOSENSOR; RECEPTOR; BINDING; CYANIDE; BENZIMIDAZOLE; BENZANILIDE; FLUORIDE;
D O I：
10.1016/j.jphotochem.2014.07.015
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
1-(4-acetyl-phenyl)-3-(4-N,N-dimethylaminopheny1)-thiourea is synthesized and characterized by NMR, IR, MS and elemental analysis. The probe exhibits the "turn-off" fluorescence response to iodide anion in THF/H2O (v/v = 9/1) pH =7.4 Tris HCl buffer solution, which is attributed to the intramolecular charge transfer (ICT). It is found that the probe has a detection limit of 0.336 p.M. Such interesting results could be further supported by quantum chemical calculation, UV and H-1 NMR titration. Moreover, the probe is applied to determine iodide in powdered milk and urine samples. This experiment shows a good agreement between added and detected concentration of the iodide in real samples. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：49 / 55
页数：7
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