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          Institute: Fritz-Haber-Institut     Collection: Inorganic Chemistry     Display Documents

ID: 446334.0, Fritz-Haber-Institut / Inorganic Chemistry
Fission processes following core level excitation in closo-1,2-orthocarborane
Authors:Rühl, E.; Hitchcock, A. P.; Bozek, J. D.; Tyliszczak, T.; Kilcoyne, A. L. D.; McIlroy, D. N.; Knop-Gericke, Axel; Dowben, P. A.
Research Context:Photoelectron–photoion– photoion coincidence (PEPIPICO) spectroscopy
Date of Publication (YYYY-MM-DD):2010
Title of Journal:Physica Status Solidi B
Journal Abbrev.:Phys. Status Solidi B
Issue / Number:7
Start Page:1496
End Page:1503
Copyright:© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Time-of-flight mass analysis with multi-stop coincidence detection was used to study the multi-cation ionic fragmentation of the closo carborane cage molecule closo -1,2-orthocarborane (C2B10H12) following inner-shell excitation in or above the B 1s regime. Electron ion coincidence spectra reveal the cationic products which are formed after core level excitation. Distinct changes in fragmentation pattern are observed as a function of excitation energy. Photoelectron-photoion-photoion coincidence (PEPIPICO) spectroscopy was used to study the dominant fission routes in the core level excitation regime. Series of ion pairs are identified, where asymmetric fission dominates, leading to ion pairs of different mass. Suitable fission and fragmentation mechanisms are discussed.
Free Keywords:32.80.Fb; 52.25.Jm; 82.30.Lp; 82.80.Rt
External Publication Status:published
Document Type:Article
Communicated by:Robert Schlögl
Affiliations:Fritz-Haber-Institut/Inorganic Chemistry/Electronic Structure and Adsorption / Metals
External Affiliations:Physikalische Chemie, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
Department of Chemistry, McMaster University, Hamilton, Ontario, L8S 4M1, Canada
Stanford Linear Accelerator, LCLS Project, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
Advanced Light Source, Lawrence-Berkeley Laboratory, Berkeley, CA 91420, USA
Department of Physics, Engineering and Physics Bldg., University of Idaho, Moscow, ID 83844-0903, USA
Department of Physics and Astronomy, and the Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588-0111, USA
Identifiers:URL:http://dx.doi.org/10.1002/pssb.200945126 [only for subscriber]
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