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Highly Selective Optical-Electrochemical Zn2+ Detection Based on Tetrathiafulvalene

Authors

  • Xunwen Xiao,

    Corresponding author
    • Department of Chemical Engineering, Ningbo University of Technology, Ningbo, People's Republic of China
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  • Yanjun He,

    1. Department of Chemical Engineering, Ningbo University of Technology, Ningbo, People's Republic of China
    2. Department of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
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  • Guannan Wang,

    1. Department of Chemical Engineering, Ningbo University of Technology, Ningbo, People's Republic of China
    2. Department of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, People's Republic of China
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  • Liangjun Shen,

    1. Department of Chemical Engineering, Ningbo University of Technology, Ningbo, People's Republic of China
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  • Yuping Guo,

    1. Department of Foreign Languages, Ningbo University of Technology, Ningbo, People's Republic of China
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  • Jianghua Fang,

    1. Department of Chemical Engineering, Ningbo University of Technology, Ningbo, People's Republic of China
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  • Jianping Yang

    Corresponding author
    • Department of Chemical Engineering, Ningbo University of Technology, Ningbo, People's Republic of China
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  • Contract grant sponsor: National Natural Science Foundation of China.

    Contract grant number: 20902051.

    Contract grant sponsor: Foundation of the Education Committee of Zhejiang Province.

    Contract grant number: Y201120345.

    Contract grant sponsor: Ningbo Science and Technology Innovation Team.

    Contract grant number: 2011B82002.

Correspondence to: X. Xiao; e-mail: xunwenxiao@126.com. J. Yang; e-mail: yjpnbcn@126.com.

ABSTRACT

Ethylenedioxytetrathiafulvalene substituted with a pyridinyl (Py) group (1) shows remarkable sensing and coordinating properties only to Zn2+ ion, not to the other metal ions. Addition of a micromolar concentration of Zn2+ ion to the solution of 1, a dramatic change is observed in the UV–vis absorption spectrum and redox property, and the discrimination is readily possible even by “the naked eye.” Comparison of the recognition ability between 1 and its reference compound (ethynylpyridinyltetrathiafulvalene) 2 suggests that the nature of the space linking tetrathiafulvalene and acceptor moiety plays an important role in the intramolecular charge-transfer state. © 2012 Wiley Periodicals, Inc. Heteroatom Chem 24:72–76, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.21066

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