FEATURES OF INNER ATOMIC SHELL PHOTOIONIZATION IN MOLECULES
Résumé
The following experimental features of ultra-soft X-ray absorption molecular spectra [1], [2] are discussed : 1. Existence of strong absorption maxima on the high energy side of ionization thresholds (in continuum) of inner shells of atoms in molecules. 2. Similarity of the fine structure of K (1 s) spectrum of fluorine and L (2 p) spectrum of sulphurin the number of maxima and their energy position with respect to ionization threshold in molecule SF6. 3. Absence of sharp rise in absorption coefficient at the ionization threshold of inner shells of the central atom surrounded by electronegative atoms in high symmetrical molecules (SF6, SiF4 and others). [1] ZIMKINA (T. M.), FOMICHEV (V. A.), Dokladi ANSSSR, 1966, 169, 1304. [2] ZIMKINA (T. M.), VINOGRADOV (A. S.) « X-ray spectra and electronic structure of matter » II, I. M. F. AN USSR, Kiev, 1969.
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