Journal ArticleDOI
Conformational Effects in Photoelectron Circular Dichroism of Alaninol
Stefano Turchini,Daniele Catone,Giorgio Contini,Nicola Zema,Simona Irrera,Mauro Stener,Mauro Stener,Devis Di Tommaso,Devis Di Tommaso,Piero Decleva,Piero Decleva,Tommaso Prosperi +11 more
TLDR
This work indicates in a detailed experimental analysis that CD in photoelectron spectroscopy is an effective technique to disentangle the conformer assignment in photoElectron spectra.Abstract:
A photoelectron circular dichroism (CD) study of the valence states of 2-amino-1-propanol (alaninol) in the gas phase is presented. The aim of the investigation is to reveal conformer population effects in the valence-state photoelectron spectrum. The experimental dispersion of the dichroic D parameter of valence states as a function of the photon excitation energy is compared with its theoretical value calculated by employing a multicentric basis set of B-spline functions and a Kohn-Sham Hamiltonian. The theoretical values are in very good agreement with the experimental data when the conformer population distribution is taken into account. Moreover, thanks to a comparison between experiment and theory, a clear assignment of the molecular orbital character and conformer geometry is given to the features of the photoelectron spectrum. This work indicates in a detailed experimental analysis that CD in photoelectron spectroscopy is an effective technique to disentangle the conformer assignment in photoelectron spectra.read more
Citations
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Journal ArticleDOI
Detecting chirality in molecules by imaging photoelectron circular dichroism
Maurice H. M. Janssen,Ivan Powis +1 more
TL;DR: The capabilities and the potential of PECD are illustrated with various experimental examples and computational methods that are able to model quantitatively experimental PECD results are introduced, focusing on velocity map coincidence imaging where the momentum distribution of both the electron and the coincident ion is measured.
Journal ArticleDOI
Vibrationally induced inversion of photoelectron forward-backward asymmetry in chiral molecule photoionization by circularly polarized light
TL;DR: It is reported that the forward-backward asymmetry in the electron angular distribution, with respect to the photon axis, which is associated with photoelectron circular dichroism can surprisingly reverse direction according to the ion vibrational mode excited.
Journal ArticleDOI
Valence shell one-photon photoelectron circular dichroism in chiral systems
TL;DR: A review of the available theoretical and experimental tools and their performances can be found in this paper, with a particular emphasis on single-photon valence-shell ionization induced by VUV continuous sources such as synchrotron radiation and observed by electron imaging.
Journal ArticleDOI
Determination of accurate electron chiral asymmetries in fenchone and camphor in the VUV range: sensitivity to isomerism and enantiomeric purity
Laurent Nahon,Lipsa Nag,Gustavo A. Garcia,Iuliia Myrgorodska,Uwe J. Meierhenrich,Samuel Beaulieu,Vincent Wanie,Valérie Blanchet,Romain Géneaux,Ivan Powis +9 more
TL;DR: The accuracy of the data provided are such that limited departure from perfect enantiopurity in the sample the authors purchased could be detected and estimated in excellent agreement with the analysis performed in parallel via a chromatographic technique, establishing a new standard of accuracy, in the ±1% range, for enantiomeric excess measurement via PECD.
Journal ArticleDOI
Probing ultrafast dynamics of chiral molecules using time-resolved photoelectron circular dichroism
Samuel Beaulieu,Antoine Comby,Baptiste Fabre,Dominique Descamps,A. Ferré,Gustavo A. Garcia,Romain Géneaux,François Légaré,Laurent Nahon,Stéphane Petit,Thierry Ruchon,Bernard Pons,Valérie Blanchet,Yann Mairesse +13 more
TL;DR: It is shown that time-resolved PECD enables revealing dynamics much faster than the population decay of the Rydberg states, demonstrating the high sensitivity of this technique to vibronic relaxation.
References
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Asymmetry in Photoelectron Emission from Chiral Molecules Induced by Circularly Polarized Light
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