Double photoionization of thiophene and bromine-substituted thiophenes.

P Linusson, L Storchi, F Heijkenskjöld, E Andersson, M Elshakre, B Pfeifer, M Colombet, J H D Eland, L Karlsson, J-E Rubensson, F Tarantelli, R Feifel

Index: J. Chem. Phys. 129(23) , 234303, (2008)

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Abstract

We report the double photoionization spectra of thiophene, 3-bromothiophene, and 3,4-dibromothiophene using a coincidence spectroscopy technique based on electron time-of-flight measurements. Spectra have been recorded between the onset and 40.814 eV using He IIalpha radiation. The He I photoelectron spectrum of 3,4-dibromothiophene has also been measured. All the spectra have been analyzed and interpreted in detail on the basis of theoretical simulations from accurate Green's function calculations.