Synthesis and evaluation of a novel fluorescent sensor based on hexahomotrioxacalix[3]arene for Zn²+ and Cd²+

Jiang, Xue-Kai; Ikejiri, Yusuke; Jin, Cheng-Cheng; Wu, Chong; Zhao, Jiang-Lin; Ni, Xin-Long; Zeng, Xi; Redshaw, Carl; Yamato, Takehiko

Abstract

A novel type of selective and sensitive fluorescent sensor having triazole rings as the binding sites on the lower rim of a hexahomotrioxacalix[3]arene scaffold in a cone conformation is reported. This sensor has desirable properties for practical applications, including selectivity for detecting Zn²⁺ and Cd²⁺ in the presence of excess competing metal ions at low ion concentration or as a fluorescence enhancement type chemosensor due to the cavity of calixarene changing from a ‘flattened-cone’ to a more-upright form and inhibition of PET. In contrast, the results suggested that receptor 1 is highly sensitive and selective for Cu²⁺ and Fe³⁺ as a fluorescence quenching type chemosensor due to the photoinduced electron transfer (PET) or heavy atom effect.

Citation

Jiang, X.-K., Ikejiri, Y., Jin, C.-C., Wu, C., Zhao, J.-L., Ni, X.-L., Zeng, X., Redshaw, C., & Yamato, T. (2016). Synthesis and evaluation of a novel fluorescent sensor based on hexahomotrioxacalix[3]arene for Zn²+ and Cd²+. Tetrahedron, 72(32), 4854-4858. https://doi.org/10.1016/j.tet.2016.06.055

• Journal Article Type: Article
• Acceptance Date: Jun 21, 2016
• Online Publication Date: Jun 23, 2016
• Publication Date: Aug 11, 2016
• Deposit Date: Nov 17, 2016
• Publicly Available Date: Nov 17, 2016
• Journal: Tetrahedron
• Print ISSN: 0040-4020
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 72
• Issue: 32
• Pages: 4854-4858
• DOI: https://doi.org/10.1016/j.tet.2016.06.055
• Keywords: Hexahomotrioxacalix[3]arene; Metal ion recognition; Pyrenyl-appended triazole; Fluorescent sensor; Zinc cation
• Public URL: https://hull-repository.worktribe.com/output/445341
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0040402016305774
• Contract Date: Nov 17, 2016