A novel HBT-based Schiff base for colorimetric detection of aluminum: Synthesis, characterization, spectral and DFT computational studies

被引：35
作者：
Liu, Shudi [1 ]
Zhang, Liangwei [2 ]
Zan, Wenyan [3 ]
Yao, Xiaojun [3 ]
Yang, Ying [1 ]
Liu, Xiang [1 ]
机构：
[1] Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China
[2] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China
[3] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2014年 / 192卷
基金：
中国国家自然科学基金;
关键词：
Schiff base; Aluminum; HBT; Fluorescence probe; TURN-ON CHEMOSENSOR; FLUORESCENT-PROBE; AL3+; PARKINSONISM; SENSORS; DESIGN; ESIPT; IONS; ZINC;
D O I：
10.1016/j.snb.2013.10.134
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel Schiff base L was easily synthesized by the condensation reaction of 2-aminophenol and p-hydroxyphenylbenzothiazole (p-HBT) and could be used for detection of aluminum in ethanol as well as in aqueous solution. Among the detected metal ions, only Al3+ ion can induce a significant enhancement in fluorescence intensity. The lowest detection limit and the dissociation constants K-d for Al3+ are determined to be 8.24 x 10(-9) M and 3.00 x 10(-5) M, respectively. In addition, the binding details of L-Al3+ complex were investigated by means of infrared spectra, H-1 NMR titration and DFT computational studies, implying the fluorescence intensity enhanced by the inhibition of the ESIPT process in L, and further the formation of a large pi-electron conjugation system. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：386 / 392
页数：7
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