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A Highly Selective Chemosensor for Cu 2+ Based on a Diarylethene Linking an Aminoquinoline Unit
Author(s) -
Zhang Congcong,
Fan Congbin,
Pu Shouzhi,
Liu Gang
Publication year - 2015
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201500578
Subject(s) - diarylethene , chemistry , photochromism , absorption (acoustics) , metal ions in aqueous solution , fluorescence , detection limit , ion , derivative (finance) , photochemistry , metal , organic chemistry , chromatography , optics , physics , financial economics , economics
A new diarylethene derivative containing an aminoquinoline unit was synthesized and its structure was determined by single crystal X‐ray diffraction analysis. Its properties such as photochromism, fluorescent switches and detection for metal ions were measured. The results indicated that the closed‐ring of the diarylethene was highly selective toward Cu 2+ with an obvious absorption decrease and color changes from blue to colorless, even in the presence of other metal ions. The binding constant for the closed isomer of this new diarylethene and Cu 2+ was 2.0×10 4 L·mol −1 and the limit of detection for Cu 2+ was calculated to be lower than that in drink water. Finally, a logic circuit was constructed by using the absorption intensity as the output signal with the inputs of the combinational stimuli of light and Cu 2+ .