at Google ScholarTitle data
Shritz, Rozalia ; Shapira, Reut ; Borzin, Elena ; Tumanskii, Boris ; Reichstein, Werner ; Meichner, Christoph ; Schwaiger, Florian ; Reichstein, Paul M. ; Kreyenschmidt, Judith ; Haarer, Dietrich ; Kador, Lothar ; Eichen, Yoav:
Measuring Cumulative Exposure to Oxygen with a Diphenylphosphine–Alkyl Naphthaleneimide Luminescence Turn-On Dyad.
In: Chemistry : a European Journal.
Vol. 21
(2015)
Issue 32
.
- pp. 11531-11537.
ISSN 1521-3765
DOI: https://doi.org/10.1002/chem.201500479
Abstract in another language
2-(2-Diphenylphosphanylethyl)benzo[de]isoquinoline-1,3-dione is a poorly luminescent, photoinduced-electron-transfer (PET) dyad, NI-(Ph)2P:, in which the luminescence of its naphthaleneimide (NI) part is quenched by the lone-pair electrons of the phosphorus atom of the (Ph)2P: group. Photoinduced oxidation of (Ph)2P: to (Ph)2PO by molecular oxygen regenerates the luminescence of the NI group, because the oxidized form (Ph)2PO does not serve as a quencher to the NI system. The oxidation of (Ph)2P: is thermally inaccessible. The NI-(Ph)2P: system was applied to monitoring the cumulative exposure of oxidation-sensitive goods to molecular oxygen. The major advantage of this new PET system is that it reacts with oxygen only via the photoinduced channel, which offers the flexibility of monitoring the cumulative exposure to oxygen in different time periods, simply by varying the sampling frequency. Electronic-energy calculations and optical spectroscopic data revealed that the luminescence turn-on upon reaction with molecular oxygen relies on a PET mechanism.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Analytical methods; electron transfer; luminescence; oxygen; photochemistry |
| Institutions of the University: | Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Research Institutions Research Institutions > Research Centres Research Institutions > Research Centres > Bayreuth Institute of Macromolecular Research - BIMF |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science 500 Science > 500 Natural sciences 500 Science > 530 Physics 500 Science > 540 Chemistry |
| Date Deposited: | 12 Feb 2016 10:53 |
| Last Modified: | 14 May 2020 08:27 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/27847 |