کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7145006 | 1462068 | 2016 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new chromogenic and fluorogenic chemosensor for Hg(II) with high selectivity based on the Hg2+-promoted deprotection of thioacetals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, a thioacetal chemosensor 1 incorporating simultaneously a carbazole moiety and an azobenzene moiety was synthesized. Among other metal ions, Hg2+ proved to be able to selectively induce both color and fluorescence changes of 1. The mechanism of Hg2+-promoted cleavage of thioacetal was confirmed by 1H NMR experiments. Upon the addition of Hg2+ into the yellow CH3CN/H2O solution of 1, the resultant azobenzene-containing thioglycolamide was precipitated from the solution as a mercuric salt, leading to a colorless solution. Therefore, a novel color change pattern was developed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 223, February 2016, Pages 172-177
Journal: Sensors and Actuators B: Chemical - Volume 223, February 2016, Pages 172-177
نویسندگان
Zhu Yu, Zaiwen Tian, Zhengqian Li, Zaoli Luo, Yan Li, Yi Li, Jun Ren,