Threshold photoelectron studies of isoxazole over the energy range 9.9-30 eV

Dampc, Marcin; Mielewska, Brygida; Siggel-King, Michele R.F.; King, George C.; Sivaraman, Bhalamurugan; Ptasińska, Sylwia; Mason, Nigel and Zubek, Mariusz (2010). Threshold photoelectron studies of isoxazole over the energy range 9.9-30 eV. Chemical Physics, 367(2-3) pp. 75–79.

DOI: https://doi.org/10.1016/j.chemphys.2009.10.024

Abstract

The threshold photoelectron spectrum of the isoxazole molecule, C3H3NO has been measured over the photon energy range 9.9eV to 30eV with the use of synchrotron radiation. In the 9.9-10.8 eV range, corresponding to photoionization from the highest occupied molecular orbital 3a�(?3), seven well resolved vibrational series have been observed and their modes are tentatively assigned. A strong adiabatic ionization, with an energy of 11.132 ± 0.003eV corresponding to the 2a–�(?2) band, has also been observed. This is followed by a single vibrational series of the vC-H stretching mode. Photoelectron bands in the energy region 13-30 eV have also been identified, some for the first time.

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