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Measuring Cumulative Exposure to Oxygen with a Diphenylphosphine–Alkyl Naphthaleneimide Luminescence Turn-On Dyad

Title 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: 12 Feb 2016 10:53
URI: https://eref.uni-bayreuth.de/id/eprint/27847