The vacuum ultraviolet laser excitation spectra for free ion-pair (X+ + Y−) formation from jet-cooled I2 and ICl

Literature Information

Publication Date 2002-03-21
DOI 10.1039/B109558G
Impact Factor 3.676
Authors

Kenneth P. Lawley, Alexander C. Flexen, Robert R. J. Maier, Andreas Manck, Trevor Ridley, Robert J. Donovan


View Original

Abstract

The energy difference between the threshold for free ion-pair formation (X+ + Y−) and the molecular ionization energy (XY+) is relatively large in I2 and ICl. Photodissociation to free ion-pairs in this energy region has been probed by vacuum ultraviolet laser radiation generated by four-wave mixing. The negative ion excitation spectra are highly structured and closely follow the one-photon absorption cross-sections. Several Rydberg series are identified, the f series being particularly prominent. Direct absorption to the free ion-pair continuum is negligible in this region and all of the Rydberg states that are accessed act as efficient doorway states to ion-pair production.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
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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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