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Carrascosa, Eduardo, Bull, James N. 
ORCID: https://orcid.org/0000-0003-0953-1716, Buntine, Jack T., da Silva, Gabriel, Santos, Paulo F. and Bieske, Evan J.
(2020)
Near-infrared reversible photoswitching of an isolated azobenzene-stilbene dye.
Chemical Physics Letters, 741.
ISSN 0009-2614
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Abstract
Photoswitching of a charged azobenzene-stilbene dye is investigated through laser excitation in a tandem ion mobility mass spectrometer. Action spectra associated with E→Z and Z→E photoisomerisation of the stilbene group exhibit bands at 685 and 440 nm, corresponding to S1←S0 and S3←S0 transitions, respectively. The data suggest that isomers possessing a Z configuration of the azobenzene unit rapidly convert to E isomers and are not discernible using ion mobility spectrometry, and that photoisomerisation occurs through excited state dynamics rather than statistical isomerisation on the ground state potential energy surface.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | action spectroscopy,ion mobility,molecules,photoisomerisation,photoswitch,stilbene |
| Faculty \ School: | Faculty of Science > School of Chemistry |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 08 Jan 2020 04:22 |
| Last Modified: | 22 Oct 2022 05:40 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/73521 |
| DOI: | 10.1016/j.cplett.2019.137065 |
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