Determination of Pd2+ by fluorescence enhancement caused by an off-switching of an energy- and an electron transfer
- In this paper, we introduce a fluorescent dye 1, which is able to detect selectively Pd2+ by a clear fluorescence enhancement (FE) in THF. In the presence of eight Pd2+ equivalents, we observed a fluorescence enhancement factor (FEF) of 28.3. The high Pd2+ induced FEF can be explained by an off switching of multiple quenching processes within 1 by Pd2+. In the free dye 1 a photoinduced electron transfer (PET) and energy transfer (ET) takes place and quenches the anthracenic fluorescence. The coordination of eight Pd2+ units by the alkylthio-substituted porphyrazine receptor suppresses the PET and ET quenching process and the anthracenic fluorescence is switched on.
Author details: | Thomas SchwarzeORCiD |
---|---|
DOI: | https://doi.org/10.1002/slct.202003975 |
ISSN: | 2365-6549 |
Title of parent work (English): | ChemistrySelect |
Publisher: | Wiley-VCH |
Place of publishing: | Weinheim |
Publication type: | Article |
Language: | English |
Date of first publication: | 2021/01/15 |
Publication year: | 2021 |
Release date: | 2023/01/12 |
Tag: | Palladium ion; electron transfer; energy transfer; fluorescence; porphyrazine |
Volume: | 6 |
Issue: | 3 |
Number of pages: | 5 |
First page: | 318 |
Last Page: | 322 |
Funding institution: | Projekt DEAL |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
Peer review: | Referiert |
Publishing method: | Open Access / Hybrid Open-Access |
License (German): | CC-BY - Namensnennung 4.0 International |