Charge transfer and fragmentation of liquid helium droplets doped with xenon
文献信息
Thomas Ruchti, Berton E. Callicoatt, Kenneth C. Janda
The ionization and fragmentation of clusters containing 1100, 2200, 2800 or 3300 helium atoms, on average, and between one and four Xe atoms are studied by electron impact mass spectrometry. The results are quite different from those of earlier studies of helium clusters containing Ne and Ar atoms. The observation of the Xe+ fragment is much more probable for ionization of clusters containing a single Xe atom than is the observation of Ne+ or Ar+ for clusters that contain a single Ne or Ar atom. Also, clusters that contain two Xe atoms are much less likely to yield Xe2+ compared to the analogous process for clusters containing two Ne or Ar atoms. These differences are attributed to the fact that the charge transfer from He+ to Xe can lead to electronically excited Xe+ ions. Charge transfer from He+ to Xe is not substantially more probable than from He+ to Ne or Ar. The changes of the charge transfer probability and the fragmentation patterns with cluster size are discussed.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.













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