Rational design, synthesis of reaction-based dual-channel cyanide sensor in aqueous solution

被引：35

作者：

Li, Jun-Jian ^{[1
]}

Wei, Wei ^{[1
]}

Qi, Xiao-Liang ^{[1
]}

Xu, Xiao ^{[1
]}

Liu, Yu-Cheng ^{[1
]}

Lin, Qiu-Han ^{[1
]}

Dong, Wei ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2016年 / 152卷

基金：

中国国家自然科学基金;

关键词：

Cyanide (CN-); Reaction-based; Dual-channel; Intramolecular charge transfer; Donor-pi-acceptor; FLUORESCENT CHEMOSENSOR; NIR FLUORESCENCE; PROBE; ANION; CHEMODOSIMETER; MEROCYANINE; GLUTATHIONE;

D O I：

10.1016/j.saa.2015.07.089

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A new dual-channel sensor for the detection of cyanide was developed based on the conjugated of naphthalene and malononitrile. Upon the addition of CN-, the sensor displayed very large blue-shift in both fluorescence (80 nm) and absorption (120 nm) spectra. The sensor of cyanide was performed via the nucleophilic attack of cyanide anion to vinylic groups of the sensor with a 1:1 binding stoichiometry and the color changed of the sensor is mainly due to the intramolecular charge transfer process improvement. The intramolecular charge transfer progress was blocked with color changed and fluorescence blue-shift. The mechanism of sensor reaction with CN- ion was studied using H-1 NMR and mass spectrometry. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：288 / 293

页数：6

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