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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; Nimmrich, Amke; Dohn, Asmus O; Laursen, Mads; Zederkof, Diana B; Honarfar, Alireza; Tono, Kensuke; Katayama, Tetsuo; Owada, Shigeki; van Driel, Tim B; Kjaer, Kasper; Nielsen, Martin M; Davidsson, Jan; Uhlig, Jens; Haldrup, Kristoffer; Hub, Jochen S; Westenhoff, Sebastian.
Afiliação
  • Panman MR; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Biasin E; Centre for Molecular Movies, Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark.
  • Berntsson O; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Hermann M; Georg-August-Universität Göttingen, Institute for Microbiology and Genetics, Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany.
  • Niebling S; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Hughes AJ; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Kübel J; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Atkovska K; Georg-August-Universität Göttingen, Institute for Microbiology and Genetics, Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany.
  • Gustavsson E; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Nimmrich A; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
  • Dohn AO; Centre for Molecular Movies, Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark.
  • Laursen M; Centre for Molecular Movies, Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark.
  • Zederkof DB; Centre for Molecular Movies, Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark.
  • Honarfar A; Department of Chemical Physics, Lund University, Box 124, S-2210, Lund, Sweden.
  • Tono K; Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
  • Katayama T; Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
  • Owada S; RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan.
  • van Driel TB; LCLS, SLAC National Laboratory, Menlo Park, California 94025, USA.
  • Kjaer K; LCLS, SLAC National Laboratory, Menlo Park, California 94025, USA.
  • Nielsen MM; Centre for Molecular Movies, Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark.
  • Davidsson J; Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, SE75120 Uppsala, Sweden.
  • Uhlig J; Department of Chemical Physics, Lund University, Box 124, S-2210, Lund, Sweden.
  • Haldrup K; Centre for Molecular Movies, Department of Physics, Technical University of Denmark, DK-2800 Lyngby, Denmark.
  • Hub JS; Georg-August-Universität Göttingen, Institute for Microbiology and Genetics, Justus-von-Liebig-Weg 11, 37077 Göttingen, Germany.
  • Westenhoff S; Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden.
Phys Rev Lett ; 125(22): 226001, 2020 Nov 27.
Article em En | MEDLINE | ID: mdl-33315438
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.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article