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Observing the Structural Evolution in the Photodissociation of Diiodomethane with Femtosecond Solution X-Ray Scattering

Panman, Matthijs R. ; Biasin, Elisa ; Berntsson, Oskar ; Hermann, Markus ; Niebling, Stephan ; Hughes, Ashley J. ; Kübel, Joachim ; Atkovska, Kalina ; Gustavsson, Emil and Nimmrich, Amke , et al. (2020) In Physical Review Letters 125(22).
Abstract

Resolving the structural dynamics of the initial steps of chemical reactions is challenging. We report the femtosecond time-resolved wide-angle X-ray scattering of the photodissociation of diiodomethane in cyclohexane. The data reveal with structural detail how the molecule dissociates into radicals, how the radicals collide with the solvent, and how they form the photoisomer. We extract how translational and rotational kinetic energy is dispersed into the solvent. We also find that 85% of the primary radical pairs are confined to their original solvent cage and discuss how this influences the downstream recombination reactions.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
125
issue
22
article number
226001
publisher
American Physical Society
external identifiers
  • pmid:33315438
  • scopus:85097316292
ISSN
0031-9007
DOI
10.1103/PhysRevLett.125.226001
language
English
LU publication?
yes
id
b9b4d3e8-411b-47f7-93c6-f12b2a35ade8
date added to LUP
2020-12-18 11:10:32
date last changed
2024-03-20 21:32:12
@article{b9b4d3e8-411b-47f7-93c6-f12b2a35ade8,
  abstract     = {{<p>Resolving the structural dynamics of the initial steps of chemical reactions is challenging. We report the femtosecond time-resolved wide-angle X-ray scattering of the photodissociation of diiodomethane in cyclohexane. The data reveal with structural detail how the molecule dissociates into radicals, how the radicals collide with the solvent, and how they form the photoisomer. We extract how translational and rotational kinetic energy is dispersed into the solvent. We also find that 85% of the primary radical pairs are confined to their original solvent cage and discuss how this influences the downstream recombination reactions. </p>}},
  author       = {{Panman, Matthijs R. and Biasin, Elisa and Berntsson, Oskar and Hermann, Markus and Niebling, Stephan and Hughes, Ashley J. and Kübel, Joachim and Atkovska, Kalina and Gustavsson, Emil and Nimmrich, Amke and Dohn, Asmus O. and Laursen, Mads and Zederkof, Diana B. and Honarfar, Alireza and Tono, Kensuke and Katayama, Tetsuo and Owada, Shigeki and Van Driel, Tim B. and Kjaer, Kasper and Nielsen, Martin M. and Davidsson, Jan and Uhlig, Jens and Haldrup, Kristoffer and Hub, Jochen S. and Westenhoff, Sebastian}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  number       = {{22}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Observing the Structural Evolution in the Photodissociation of Diiodomethane with Femtosecond Solution X-Ray Scattering}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.125.226001}},
  doi          = {{10.1103/PhysRevLett.125.226001}},
  volume       = {{125}},
  year         = {{2020}},
}