Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (7): 1332.

• Articles • Previous Articles     Next Articles

Synthesis of a Novel Bisimidazolium Branched Zinc Metalloporphyrin and Its Recognition for Halide Anion

XIE Zhao-Yang, OUYANG Qin, ZHU Yi-Zhou, HUANG Wei-Wei, ZHENG Jian-Yu*   

  1. State Key Laboratory of Elemento-Organic Chemistry, Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2008-12-22 Online:2009-07-10 Published:2009-07-10
  • Contact: ZHENG Jian-Yu. E-mail: jyzheng@nankai.edu.cn
  • Supported by:

    国家“九七三”计划(批准号: 2006CB932900)、国家自然科学基金(批准号: 20572048, 20802038, 20721062)和天津市科技计划项目(批准号: 07QTPTJC29700)资助.

Abstract:

Artificial receptors that are capable of selectively binding anionic species show promise in the diagnosis and treatment of diseases, and in environmental remediation. Several anion receptors have been constructed from five-membered heterocycles, such as imidazole. In this article, an imidazolium branched zinc porphyrin was designed and synthesized as chemosensor because the electronic spectra of porphyrin were very sensitive to the change of the environment. The UV-Vis, fluorescence and 1H NMR studies revealed that this receptor could selectively bind F- and Cl- over other halide anions. After comparing with the imidazolium branched freebase porphyrin, the model of the anionic binding was considered as three-point cooperation with haloid anions through porphyrin core and two imidazole moieties.

Key words: Imidazolium; Porphyrin; Molecular recognition; Haloid anion

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