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 |
