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The role of the intermediate state in angle-resolved photoelectron studies using (2 + 1) resonance-enhanced multiphoton ionization of the chiral terpenes, α-pinene and 3-carene

Ganjitabar, Hassan; Singh, Dhirendra P.; Chapman, Richard; Gardner, Adrian; Minns, Russell S.; Powis, Ivan; Reid, Katharine L.; Vredenborg, Arno

The role of the intermediate state in angle-resolved photoelectron studies using (2 + 1) resonance-enhanced multiphoton ionization of the chiral terpenes, α-pinene and 3-carene Thumbnail


Authors

Hassan Ganjitabar

Dhirendra P. Singh

Richard Chapman

Adrian Gardner

Russell S. Minns

Ivan Powis

Arno Vredenborg



Abstract

Photoelectron angular distributions (PADs), ranging up to the maximum 6th order Legendre polynomial term set by the Yang theorem, have been recorded for the (2 + 1) resonance enhanced multiphoton ionization (REMPI) of two terpene isomers, 3-carene and α-pinene, employing femtosecond lasers and electron velocity map imaging detection. PAD measurements made with coincident photoion detection allow ion fragmentation effects to be assessed. Using circular polarization and enantiomerically pure samples the PAD measurements are extended to include chiral (odd) Legendre polynomial terms, and these are analysed and discussed as multiphoton photoelectron circular dichroism (MP-PECD). Comparisons are also made with single photon (synchrotron radiation) PECD of these compounds. Although for a given compound a common final cation state is reached, pronounced differences are observed between PECD and MP-PECD, and between the alternative identified REMPI intermediate states in the case of MP-PECD.

Citation

Ganjitabar, H., Singh, D. P., Chapman, R., Gardner, A., Minns, R. S., Powis, I., …Vredenborg, A. (2021). The role of the intermediate state in angle-resolved photoelectron studies using (2 + 1) resonance-enhanced multiphoton ionization of the chiral terpenes, α-pinene and 3-carene. Molecular Physics, 119(1-2), Article e1808907. https://doi.org/10.1080/00268976.2020.1808907

Journal Article Type Article
Acceptance Date Aug 3, 2020
Online Publication Date Aug 25, 2020
Publication Date 2021
Deposit Date Aug 25, 2020
Publicly Available Date Aug 26, 2021
Journal Molecular Physics
Print ISSN 0026-8976
Electronic ISSN 1362-3028
Publisher Taylor and Francis
Peer Reviewed Peer Reviewed
Volume 119
Issue 1-2
Article Number e1808907
DOI https://doi.org/10.1080/00268976.2020.1808907
Keywords Physical and Theoretical Chemistry; Biophysics; Molecular Biology; Condensed Matter Physics
Public URL https://nottingham-repository.worktribe.com/output/4851077
Publisher URL https://www.tandfonline.com/doi/full/10.1080/00268976.2020.1808907
Additional Information This is an Accepted Manuscript of an article published by Taylor & Francis in Molecular Physics on 25.08.20, available online: http://www.tandfonline.com/10.1080/00268976.2020.1808907

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