Synthesis, crystal structure and complexation behaviour study of an efficient Cu2+ ratiometric fluorescent chemosensor based on thiacalix[4]arene

Zhao, Jiang-lin, Tomiyasu, Hirotsugu, Wu, Chong, Cong, Hang, Zeng, Xi, Rahman, Shofiur, Georghiou, Paris E., Hughes, David L., Redshaw, Carl and Yamato, Takehiko (2015) Synthesis, crystal structure and complexation behaviour study of an efficient Cu2+ ratiometric fluorescent chemosensor based on thiacalix[4]arene. Tetrahedron, 71 (45). pp. 8521-8527. ISSN 0040-4020

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Abstract

A new thiacalix[4]arene based fluorescent chemosensor L bearing two pyrenyl groups in a 1,3-alternate conformation has been synthesized, and its metal ion-binding and fluorescence-sensing properties were investigated in ethanol. The designed chemosensor L exhibited high selectivity toward Cu2+ ions versus other tested metal ions with a detection limit of up to 1.44×10−7 M. The chemosensor L was capable of acting as an efficient ratiometric fluorescent chemosensor at low ion concentration or as a fluorescence quenching type chemosensor due to the PET and heavy atom effects operating in high ionic strength solution. Further studies revealed that chemosensor L acted as a reversible sensor in the presence of Cu2+ and ethylenediamine.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
Depositing User:	Pure Connector
Date Deposited:	12 Jan 2016 13:00
Last Modified:	21 Oct 2022 03:31
URI:	https://ueaeprints.uea.ac.uk/id/eprint/56231
DOI:	10.1016/j.tet.2015.09.038

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