A sensitive sensor for Cu(II) based on a novel diarylethene with a bipyridyl moiety |
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Authors: | Chunhong Zheng Gang Liu Shouzhi Pu |
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Institution: | 1. Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China;2. Department of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, PR China |
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Abstract: | A novel diarylethene with a bipyridyl unit has been designed and synthesized for the first time. Its photochromic behaviors could be modulated by protonation and coordination with Cu(II). The absorption maximum of the closed-ring isomer shifted from 569 to 666 nm when trifluoroacetic acid was added. Furthermore, the closed-ring isomer behaved as a sensitive colorimetric sensor, exhibiting an open-ring reaction upon exposure to Cu(II). Its high selectivity toward Cu(II) over other competitive species makes the ‘naked-eye’ detection of Cu(II) possible. |
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Keywords: | Photochromism Diarylethene Bipyridyl moiety Acidchromism Cu(II) recognition |
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