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Ionization energy studies for Cl2O monomers and dimers

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Electron ionization cross sections measured close to threshold are reported for the Cl2O monomer and dimer using a high resolution electron impact apparatus. Besides measuring the appearance energies (AEs) (Cl2O+/Cl2O) 11.04±0.06 eV, (ClO+/Cl2O) 12.29 ± 0.14 eV, (Cl+/Cl2O) 16.11 ± 0.35 eV, (O+/Cl2O) 15.15 ± 0.14 eV we have also determined, for the first time, the dimer AE (Cl2O)2+/(Cl2O)2 10.47±0.2 eV. From the data we derive a lower bound of the bond energy of 0.71±0.3 eV for (Cl2O)2+ which is similar to that of other dimer ions. Quantum chemical calculations carried out to complement the present study support the experimental data.

Document Type: Miscellaneous

Affiliations: 1: Institut für Ionenphysik, Leopold Franzens Universität, Technikerstr. 25, A-6020 Innsbruck, Austria 2: Molecular Physics Laboratory, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK

Publication date: March 1, 2002


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