期刊
PHYSICAL REVIEW LETTERS
卷 125, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.226001
关键词
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资金
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-76SF00515]
- European Research Council [6581802, 279944]
- Interreg
- Deutsche Forschungsgemeinschaft [HU 1971-1/1, HU 1971-3/1, HU 1971-4/1]
- European Research Council (ERC) [279944] Funding Source: European Research Council (ERC)
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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