期刊
TETRAHEDRON LETTERS
卷 60, 期 2, 页码 106-112出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2018.11.066
关键词
Diarylethene; Photochromism; Fluorescence; Chemosensor; Logic circuit
资金
- Science Funds of Natural Science Foundation of Jiangxi Province [41867053]
- 5511 Science and Technology Innovation Talent Project of Jiangxi Province [20165BCB18015]
- Project of Jiangxi Science and Technology Normal University Advantage Sci-Tech Innovative Team [2015CXTD002]
A new diarylethene with ethylimidazo[2,1-b]thiazole-6-hydrazide unit was synthesized, and its photochromic and fluorescent behaviors have been systematically investigated by the stimulation of lights and metal ions in methanol. This new diarylethene exhibited high selectivity and sensitivity toward Al-3* and Zn2+. The addition of Al3+ and Zn2+ displayed excellent colorimetric response behaviour with the concomitant color change from colorless to yellow, which could be easily observed by the naked eye. Upon addition of Al3+, the fluorescence intensity was enhanced by 180-fold and the emission peak of 10-Al3+ blue-shifted by 15 nm accompanied with a color change from colorless to bright blue. In contrast, when stimulated with Zn2+, its fluorescence intensity was enhanced by 35-fold and the emission peak of 10-Zn2+ red-shifted by 16 nm with an evident color change from black to bright green. The LOD for Al3+ and Zn2+ were determined to be 2.97 x 10(-9) mol L-1 and 5.98 x 10(-9) mol L-1, respectively. Moreover, a logic circuit was constructed with the fluorescence intensity as the output signal responding to the light and chemical species as the inputs. (C) 2018 Elsevier Ltd. All rights reserved.
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