Femtosecond photoelectron circular dichroism of chemical reactions

Svoboda, Vít; Ram, Niraghatam Bhargava; Baykusheva, Denitsa; Zindel, Daniel; Waters, Max D. J.; Spenger, Benjamin; Ochsner, Manuel; Herburger, Holger; Stohner, Jürgen; Wörner, Hans Jakob

doi:10.1126/sciadv.abq2811

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-25346

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Femtosecond photoelectron circular dichroism of chemical reactions
Authors:	Svoboda, Vít Ram, Niraghatam Bhargava Baykusheva, Denitsa Zindel, Daniel Waters, Max D. J. Spenger, Benjamin Ochsner, Manuel Herburger, Holger Stohner, Jürgen Wörner, Hans Jakob
et. al:	No
DOI:	10.1126/sciadv.abq2811 10.21256/zhaw-25346
Published in:	Science Advances
Volume(Issue):	8
Issue:	28
Page(s):	1
Pages to:	8
Issue Date:	15-Jul-2022
Publisher / Ed. Institution:	AAAS
ISSN:	2375-2548
Language:	English
Subject (DDC):	540: Chemistry
Abstract:	Understanding the chirality of molecular reaction pathways is essential for a broad range of fundamental and applied sciences. However, the current ability to probe chirality on the time scale of primary processes underlying chemical reactions remains very limited. Here, we demonstrate time-resolved photoelectron circular dichroism (TRPECD) with ultrashort circularly polarized vacuum-ultraviolet (VUV) pulses from a tabletop source. We demonstrate the capabilities of VUV-TRPECD by resolving the chirality changes in time during the photodissociation of atomic iodine from two chiral molecules. We identify several general key features of TRPECD, which include the ability to probe dynamical chirality along the complete photochemical reaction path, the sensitivity to the local chirality of the evolving scattering potential, and the influence of electron scattering off dissociating photofragments. Our results are interpreted by comparison with high-level ab-initio calculations of transient PECDs from molecular photoionization calculations. Our experimental and theoretical techniques define a general approach to femtochirality.
URI:	https://digitalcollection.zhaw.ch/handle/11475/25346
Fulltext version:	Published version
License (according to publishing contract):	CC BY-NC 4.0: Attribution - Non commercial 4.0 International
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Chemistry and Biotechnology (ICBT)
Appears in collections:	Publikationen Life Sciences und Facility Management

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Svoboda, V., Ram, N. B., Baykusheva, D., Zindel, D., Waters, M. D. J., Spenger, B., Ochsner, M., Herburger, H., Stohner, J., & Wörner, H. J. (2022). Femtosecond photoelectron circular dichroism of chemical reactions. Science Advances, 8(28), 1–8. https://doi.org/10.1126/sciadv.abq2811

Svoboda, V. et al. (2022) ‘Femtosecond photoelectron circular dichroism of chemical reactions’, Science Advances, 8(28), pp. 1–8. Available at: https://doi.org/10.1126/sciadv.abq2811.

V. Svoboda et al., “Femtosecond photoelectron circular dichroism of chemical reactions,” Science Advances, vol. 8, no. 28, pp. 1–8, Jul. 2022, doi: 10.1126/sciadv.abq2811.

SVOBODA, Vít, Niraghatam Bhargava RAM, Denitsa BAYKUSHEVA, Daniel ZINDEL, Max D. J. WATERS, Benjamin SPENGER, Manuel OCHSNER, Holger HERBURGER, Jürgen STOHNER und Hans Jakob WÖRNER, 2022. Femtosecond photoelectron circular dichroism of chemical reactions. Science Advances. 15 Juli 2022. Bd. 8, Nr. 28, S. 1–8. DOI 10.1126/sciadv.abq2811

Svoboda, Vít, Niraghatam Bhargava Ram, Denitsa Baykusheva, Daniel Zindel, Max D. J. Waters, Benjamin Spenger, Manuel Ochsner, Holger Herburger, Jürgen Stohner, and Hans Jakob Wörner. 2022. “Femtosecond Photoelectron Circular Dichroism of Chemical Reactions.” Science Advances 8 (28): 1–8. https://doi.org/10.1126/sciadv.abq2811.

Svoboda, Vít, et al. “Femtosecond Photoelectron Circular Dichroism of Chemical Reactions.” Science Advances, vol. 8, no. 28, July 2022, pp. 1–8, https://doi.org/10.1126/sciadv.abq2811.