Seegerer, Andreas and Nitschke, Philipp and Gschwind, Ruth M. (2018) Combined InSitu Illumination-NMR-UV/Vis Spectroscopy: A New Mechanistic Tool in Photochemistry. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 57 (25). pp. 7493-7497. ISSN 1433-7851, 1521-3773
Full text not available from this repository. (Request a copy)Abstract
Synthetic applications in photochemistry are booming. Despite great progress in the development of new reactions, mechanistic investigations are still challenging. Therefore, we present a fully automated insitu combination of NMR spectroscopy, UV/Vis spectroscopy, and illumination to allow simultaneous and time-resolved detection of paramagnetic and diamagnetic species. This optical fiber-based setup enables the first acquisition of combined UV/Vis and NMR spectra in photocatalysis, as demonstrated on a conPET process. Furthermore, the broad applicability of combined UVNMR spectroscopy for light-induced processes is demonstrated on a structural and quantitative analysis of a photoswitch, including rate modulation and stabilization of transient species by temperature variation. Owing to the flexibility regarding the NMR hardware, temperature, and light sources, we expect wide-ranging applications of this setup in various research fields.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DYNAMIC NUCLEAR-POLARIZATION; ELECTRON-TRANSFER PROCESSES; BRONSTED ACID CATALYSIS; VISIBLE-LIGHT; PHOTOREDOX CATALYSIS; HYDROGEN-BONDS; MOLECULAR MACHINES; ARYL HALIDES; PHOTOCATALYSIS; IRRADIATION; conPET; NMR spectroscopy; photochemistry; photoswitches; UV; Vis spectroscopy |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. Ruth Gschwind |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Feb 2020 08:46 |
| Last Modified: | 20 Feb 2020 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14389 |
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