Journal article
Observing the Structural Evolution in the Photodissociation of Diiodomethane with Femtosecond Solution X-Ray Scattering
University of Gothenburg1
Department of Physics, Technical University of Denmark2
Georg-August-Universität Göttingen3
Neutrons and X-rays for Materials Physics, Department of Physics, Technical University of Denmark4
Lund University5
Japan Synchrotron Radiation Research Institute6
RIKEN7
SLAC National Accelerator Laboratory8
Uppsala University9
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.
| Language: | English |
|---|---|
| Year: | 2020 |
| Pages: | 226001 |
| ISSN: | 10797114 and 00319007 |
| Types: | Journal article |
| DOI: | 10.1103/PhysRevLett.125.226001 |
| ORCIDs: | Biasin, Elisa , Dohn, Asmus O. , Nielsen, Martin M. , Haldrup, Kristoffer , 0000-0003-3853-123X , 0000-0003-1843-6278 , 0000-0003-4493-0368 , 0000-0002-1613-0315 , 0000-0002-1852-3059 , 0000-0002-0528-0422 and 0000-0002-6961-8015 |
