Selective mercury(ii) detection in aqueous solutions upon the absorption changes corresponding to the transition moments polarized along the short axis of an azobenzene chemosensor

文献情報

出版日 2020-01-06

DOI 10.1039/C9AN02286D

インパクトファクター 4.616

著者

Lei Zhang, Zhenyu Tang, LiLi Hou, Yang Qu, Yawen Deng, Chenghao Zhang, Congxia Xie, Zhongtao Wu

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要旨

A completely water soluble azobenzene chemosensor 1 for selective detection of Hg2+ was synthesized. Taking advantage of the absorption changes corresponding to the transition moments polarized along the short axis of an azobenzene, 1 showed characteristic UV-Vis signal changes in the band around 240 nm for Hg2+ in wide pH ranges, which also showed good tolerance to various metal ions and photoirradiation. Upon addition of Hg2+ into the solution of 1, a favored formation of trans-1 was observed, which is attributed to an intramolecular coordination of the PEG chain and Nβ to Hg2+ confirmed by a control experiment test.

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CiteScore: 7.8

自己引用率: 5.6%

年間論文数: 653

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Selective mercury(ii) detection in aqueous solutions upon the absorption changes corresponding to the transition moments polarized along the short axis of an azobenzene chemosensor

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