Title: Photoelectron Spectroscopy of NpPd3 and PuPd3
Authors: LE M. D.WALKER H. C.MC EWEN K. A.GOUDER THOMASHUBER FRANKWASTIN FRANCK
Citation: JOURNAL OF PHYSICS-CONDENSED MATTER vol. 20 p. 275220-1 275220-3
Publisher: IOP PUBLISHING LTD
Publication Year: 2008
JRC N°: JRC45874
ISSN: 0953-8984
URI: http://dx.doi.org/10.1088/0953-8984/20/27/275220
http://publications.jrc.ec.europa.eu/repository/handle/JRC45874
DOI: 10.1088/0953-8984/20/27/275220
Type: Articles in Journals
Abstract: The absolute photoabsorption spectrum of ethylene oxide (C2H4O) has been measured between onset and 30 eV, using monochromated synchrotron radiation. Below the ionization threshold (10.56 eV) the spectrum is dominated by sharp peaks related to excitation of Rydberg series converging on the first ionization energy. Above the ionization threshold, valence-excited states, which give rise to broad bands, predominate. Underlying Rydberg states are signalled in weak vibrational structure on the valence bands. Ab initio multireference configuration interaction (MRDCI) calculations have been carried out to assist in assignment of the excited states, both valence and Rydberg. The lowest-lying valence state is electric-dipole forbidden; the first optically allowed valence state lies close to the ionization onset. The spectrum of the oxide is compared with those of cyclopropane (C3H6) and ethylene sulphide (C2H4S).
JRC Institute:Institute for Transuranium Elements

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