A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn2+ ions

Wu, Chong; Ikejiri, Yusuke; Zhao, Jiang-Lin; Jiang, Xue-Kai; Ni, Xin-Long; Zeng, Xi; Redshaw, Carl; Yamato, Takehiko<sup>*</sup>

doi:10.1016/j.snb.2016.01.051

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A pyrene-functionalized triazole-linked hexahomotrioxacalix[3]arene as a fluorescent chemosensor for Zn2+ ions

作者：Wu, Chong; Ikejiri, Yusuke; Zhao, Jiang-Lin; Jiang, Xue-Kai; Ni, Xin-Long; Zeng, Xi; Redshaw, Carl; Yamato, Takehiko^*

来源：Sensors and Actuators B: Chemical , 2016, 228: 480-485.

DOI：10.1016/j.snb.2016.01.051

摘要

A new pyrenyl appended hexahomotrioxacalix[3]arene L featuring 1,2,3-triazole linkers was synthesized as a fluorescent chemosensor for Zn2+ in mixed aqueous media. It exhibited high affinity toward Zn2+, and the monomer and excimer emission of the pyrene moieties could be adjusted. The binding stoichiometry of the L Zn2+ complex was determined to be 1:1, and the association constant (Ka) was found to be 7.05 x 10(4) M-1. The binding behavior with Zn2+ has been confirmed by H-1 NMR spectroscopic analysis.