期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.253006
关键词
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资金
- National Science Foundation
- SLAC National Accelerator Laboratory, Chemical Sciences, Bio and Geosciences Division of the Office of Basic Energy Sciences, U.S. Department of Energy
- UK EPSRC [EP/F021232/1, EP/E028063/1]
- STFC
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
- EPSRC [EP/I032517/1, EP/E028063/1, EP/F021232/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E028063/1, EP/I032517/1, EP/F021232/1, EP/C530772/2] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [0969322] Funding Source: National Science Foundation
We report the first study of UV-induced photoisomerization probed via core ionization by an x-ray laser. We investigated x-ray ionization and fragmentation of the cyclohexadiene-hexatriene system at 850 eV during the ring opening. We find that the ion-fragmentation patterns evolve over a picosecond, reflecting a change in the state of excitation and the molecular geometry: the average kinetic energy per ion fragment and H+-ion count increase as the ring opens and the molecule elongates. We discuss new opportunities for molecular photophysics created by optical pump x-ray probe experiments.
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