Tools
Tools
Bull, James N. 
ORCID: https://orcid.org/0000-0003-0953-1716, Carrascosa, Eduardo, Mallo, Neil, Scholz, Michael S., da Silva, Gabriel, Beves, Jonathon E. and Bieske, Evan J.
(2018)
Photoswitching an isolated donor-acceptor Stenhouse adduct.
Journal of Physical Chemistry Letters, 9 (3).
pp. 665-671.
ISSN 1948-7185
Abstract
Donor-acceptor Stenhouse adducts (DASAs) are a new class of photoswitching molecules with excellent fatigue resistance and synthetic tunability. Here, tandem ion mobility mass spectrometry coupled with laser excitation is used to characterize the photocyclization reaction of isolated, charge-tagged DASA molecules over the 450-580 nm range. The experimental maximum response at 530 nm agrees with multireference perturbation theory calculations for the S1 ← S0 transition maximum at 533 nm. Photocyclization in the gas phase involves absorption of at least two photons; the first photon induces Z-E isomerization from the linear isomer to metastable intermediate isomers, while the second photon drives another E-Z isomerization and 4-electrocyclization reaction. Cyclization is thermally reversible in the gas phase with collisional excitation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | materials science(all) ,/dk/atira/pure/subjectarea/asjc/2500 |
| Faculty \ School: | Faculty of Science > School of Chemistry (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Chemistry of Light and Energy Faculty of Science > Research Groups > Centre for Photonics and Quantum Science |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 28 Feb 2019 16:30 |
| Last Modified: | 25 Sep 2024 13:54 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/70055 |
| DOI: | 10.1021/acs.jpclett.7b03402 |
Actions (login required)
 |
View Item |