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Direct evidence of a blocking heavy atom effect on the water-assisted fluorescence enhancement detection of Hg²⁺ based on a ratiometric chemosensor

Redshaw, Carl; Ni, Xin-Long; Wu, Yanan; Yamato, Takehiko

Authors

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Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Xin-Long Ni

Yanan Wu

Takehiko Yamato



Abstract

At the current stage of chemosensor chemistry, the critical question now is whether the heavy atom effect caused by HTM ions can be blocked or avoided. In the present work, we provide unequivocal evidence to confirm that the heavy atom effect of Hg²⁺ is inhibited by water and other solvent molecules based on results using the chemosensor L. Most importantly, the heavy atom effect and blocking thereof were monitored within the same system by the use of ratiometric fluorescence signal changes of the pyrene motif. These observations not only serve as the foundation for the design of new ‘turn-on’ chemosensors for HTM ions, but also open up new opportunities for the monitoring of organic reactions.

Journal Article Type Article
Publication Date Sep 7, 2014
Journal Dalton transactions
Print ISSN 1477-9226
Electronic ISSN 1477-9234
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 43
Issue 33
Pages 12633-12638
APA6 Citation Redshaw, C., Ni, X., Wu, Y., & Yamato, T. (2014). Direct evidence of a blocking heavy atom effect on the water-assisted fluorescence enhancement detection of Hg²⁺ based on a ratiometric chemosensor. Dalton transactions : an international journal of inorganic chemistry / RSoC, 43(33), 12633-12638. doi:10.1039/c4dt01310g
DOI https://doi.org/10.1039/c4dt01310g
Keywords Heavy atom effect, Chemosensors
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2014/DT/C4DT01310G#!divAbstract
Additional Information Author's accepted manuscript of article published in: Dalton transactions, 2014, v.43, issue 33

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