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Wavelength dependent photoelectron circular dichroism of limonene studied by femtosecond multiphoton laser ionization and electron-ion coincidence imaging

Rafiee Fanood, Mohammad M.; Janssen, Maurice M. H.; Powis, Ivan

Authors

Mohammad M. Rafiee Fanood

Maurice M. H. Janssen

Ivan Powis



Abstract

Enantiomers of the monoterpene limonene have been investigated by (2+1) resonance enhanced multiphoton ionization and photoelectron circular dichroism employing tuneable, circularly polarized femtosecond laser pulses. Electron imaging detection provides 3D momentum measurement while electron-ion coincidence detection can be used to mass-tag individual electrons. Additional filtering, by accepting only parent ion tagged electrons, can be then used to provide discrimination against higher energy dissociative ionization mechanisms where more than three photons are absorbed to better delineate the two photon resonant, one photon ionization pathway. The promotion of different vibrational levels and, tentatively, different electronic ion core configurations in the intermediate Rydberg states can be achieved with different laser excitation wavelengths (420 nm, 412 nm, and 392 nm), in turn producing different state distributions in the resulting cations. Strong chiral asymmetries in the lab frame photoelectron angular distributions are quantified, and a comparison made with a single photon (synchrotron radiation) measurement at an equivalent photon energy.

Citation

Rafiee Fanood, M. M., Janssen, M. M. H., & Powis, I. (in press). Wavelength dependent photoelectron circular dichroism of limonene studied by femtosecond multiphoton laser ionization and electron-ion coincidence imaging. Journal of Chemical Physics, 145(124320), https://doi.org/10.1063/1.4963229

Journal Article Type Article
Acceptance Date Sep 10, 2016
Online Publication Date Sep 30, 2016
Deposit Date Oct 3, 2016
Publicly Available Date Oct 3, 2016
Journal Journal of Chemical Physics
Print ISSN 0021-9606
Electronic ISSN 1089-7690
Publisher AIP Publishing
Peer Reviewed Peer Reviewed
Volume 145
Issue 124320
Article Number 124320
DOI https://doi.org/10.1063/1.4963229
Public URL http://eprints.nottingham.ac.uk/id/eprint/37302
Publisher URL http://dx.doi.org/10.1063/1.4963229
Related Public URLs http://scitation.aip.org/content/aip/journal/jcp/145/12/10.1063/1.4963229?TRACK=RSS
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
Additional Information Mohammad M. Rafiee Fanood, Maurice H.M. Janssen and Ivan Powis. Wavelength dependent photoelectron circular dichroism of limonene studied by femtosecond multiphoton laser ionization and electron-ion coincidence imaging.
J. Chem. Phys. 145, 124320 (2016). doi:10.1063/1.4963229

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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