40.81 eV photoelectron spectroscopy of the thallous halides

Photoelectron spectra (using 40.81 eV photons) of TlF, TlCl, TlBr and TlI are presented. Absolute binding energies of the outermost halogen np levels with respect to the vacuum level and the energy separations between the thallium 5 d 5/2 level and the halogen np level are compared with the correspo...

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Bibliographic Details
Published in:Journal of electron spectroscopy and related phenomena 1976, Vol.9 (1), p.11-19
Main Authors: Williams, D.R., Poole, R.T., Jenkin, J.G., Liesegang, J., Leckey, R.C.G.
Format: Article
Language:English
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Summary:Photoelectron spectra (using 40.81 eV photons) of TlF, TlCl, TlBr and TlI are presented. Absolute binding energies of the outermost halogen np levels with respect to the vacuum level and the energy separations between the thallium 5 d 5/2 level and the halogen np level are compared with the corresponding energies predicted using the Born model for ionic solids. The thallium ion 2 D 5/2 and 2 D 3/2 final states display a non-statistical branching ratio and this is explained in terms of the relative photoionization cross-sections of d 5/2 and d 3/2 electrons. Structure in the spectrum of TIF is interpreted in terms of molecular orbital-like states.
ISSN:0368-2048
1873-2526
DOI:10.1016/0368-2048(76)85002-5