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An experimental and theoretical investigation of the valence double photoionisation of the iodine molecule
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics, Physics II.
2006 (English)In: Chemical Physics, ISSN 0301-0104, E-ISSN 1873-4421, Vol. 324, no 2-3, 674-678 p.Article in journal (Refereed) Published
Abstract [en]

The double photoionisation spectrum of molecular iodine has been measured at three wavelengths by the TOF-PEPECO technique and is interpreted using relativistic molecular structure COSCI calculations of potential curves for a large number of electronic states connected to the three lowest groups of dissociation limits. The lowest double ionisation energy is 24.85 ± 0.02 eV (adiabatic) or 24.95 ± 0.02 eV (vertical). It is associated with the electronic state of . The double ionisation process is mainly direct, and positions and widths of the bands are well reproduced by the calculations.

Place, publisher, year, edition, pages
2006. Vol. 324, no 2-3, 674-678 p.
Keyword [en]
Double photoionisation, I2, Coincidence technique
National Category
Chemical Sciences
URN: urn:nbn:se:uu:diva-25676DOI: 10.1016/j.chemphys.2005.12.004OAI: oai:DiVA.org:uu-25676DiVA: diva2:53450
Available from: 2007-02-13 Created: 2007-02-13 Last updated: 2011-03-14Bibliographically approved

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