A new solvatochromic linear π-conjugated dye based on phenylene(poly)ethynylene as supersensitive low-level water detector in organic solvents

被引：35

作者：

Guan, X. L. ^{[1
]}

Jia, T. M. ^{[1
]}

Zhang, D. H. ^{[1
]}

Zhang, Y. ^{[1
]}

Ma, H. C. ^{[1
]}

Lu, D. D. ^{[1
]}

Lai, S. J. ^{[2
]}

Lei, Z. Q. ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Chem & Chem Engn, Key Lab Ecoenvironm Related Polymer Mat, Minist Educ,Key Lab Polymer Mat,Minist Gansu Prov, Lanzhou 730070, Gansu, Peoples R China

[2] Lanzhou Univ Arts & Sci, Sch Chem Engn, Lanzhou 730000, Gansu, Peoples R China

来源：

DYES AND PIGMENTS | 2017年 / 136卷

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

pi-conjugated dye; Phenylene(poly)ethynylene; Solvatochromic sensor; Water detector; Organic solvents; TRACE WATER; FLUORESCENT; HUMIDITY; POLARITY; PROBES;

D O I：

10.1016/j.dyepig.2016.09.055

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel class of phenylene-(poly)ethynylene-based dye Sensor 1 with remarkable properties of solvatochromism has been designed and synthesized. A long, coplanar and asymmetry electron-rich pi-conjugated structure endows Sensor 1 with maximum solvatochromic effect by intramolecular charge-transferstates (ICT). More importantly, The dye is found to serve as supersensitive fluorescent indicator for the quantitative detection of low-level water content in five common organic solvents with low detection limits. Furthermore, the development of easy-to-prepare test papers provides a convenient and reliable approach to qualitatively monitor water in organic solvents by naked eye. Results in this work not only provide a successful molecular design concept of the novel sensitive solvatochromic dye sensor for water in organic solvents, but also develop practical applications of the linear pi-conjugated molecule bearing phenylene-(poly)ethynylene in chemosensor field. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：873 / 880

页数：8

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