Toward Opto-Structural Correlation to Investigate Luminescence Thermometry in an Organometallic Eu(II) Complex.
| Autor: | Diaz-Rodriguez RM; Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada., Gálico DA; Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada., Chartrand D; Department of Chemistry, Université de Montréal, Montréal, Quebec H3T 1J4, Canada., Suturina EA; Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom., Murugesu M; Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Journal of the American Chemical Society [J Am Chem Soc] 2022 Jan 19; Vol. 144 (2), pp. 912-921. Date of Electronic Publication: 2022 Jan 06. |
| DOI: | 10.1021/jacs.1c11076 |
| Abstrakt: | Lanthanide-based luminescent materials have unique properties and are well-studied for many potential applications. In particular, the characteristic 5d → 4f emission of divalent lanthanide ions such as Eu II allows for tunability of the emissive properties via modulation of the coordination environment. We report the synthesis and photoluminescence investigation of pentamethylcyclopentadienyleuropium(II) tetrahydroborate bis(tetrahydrofuran) dimer ( 1 ), the first example of an organometallic, discrete molecular Eu II band-shift luminescence thermometer. Complex 1 exhibits an absolute sensitivity of 8.2 cm -1 K -1 at 320 K, the highest thus far observed for a lanthanide-based band-shift thermometer. Opto-structural correlation via variable-temperature single-crystal X-ray diffraction and fluorescence spectroscopy allows rationalization of the remarkable thermometric luminescence of complex 1 and reveals the significant potential of molecular Eu II compounds in luminescence thermometry. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|