New Principle for Simple Water Detection using Fluorescence Lifetime Triangulenium Probes
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The fluorescence of phenol-substituted ADOTA triangulenium fluorophores is quenched as function of the water content in acetonitrile. We investigate three phenol-ADOTA derivatives in various solvent mixtures and conclude that water acts as a dynamic quencher by serving as a proton acceptor in a proton coupled electron transfer reaction with the excited ADOTA. Beyond the mechanistic insights into this quenching mechanism we demonstrate how these ADOTA dyes can probe the water content from a simple calibration free single-point measurement of the fluorescence lifetime.
Original language | English |
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Article number | e202300215 |
Journal | ChemPhotoChem |
Volume | 8 |
Issue number | 2 |
Number of pages | 5 |
ISSN | 2367-0932 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
Funding Information:
The work was supported by the Novo Nordic Foundation (NNF20OC0062176).
Publisher Copyright:
© 2023 The Authors. ChemPhotoChem published by Wiley-VCH GmbH.
- Fluorescence lifetime, PCET, PET quenching, Triangulenium dyes, water probes
Research areas
ID: 373874600