Numéro
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
Page(s) C2-9 - C2-20
DOI https://doi.org/10.1051/jp4/1997003
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure

J. Phys. IV France 7 (1997) C2-9-C2-20

DOI: 10.1051/jp4/1997003

Recent Progress in Resonant Soft X-Ray Fluorescence Studies of Molecules

E.J. Nordgren

Uppsala University, Physics Department, Box 530, S-751 21 Uppsala, Sweden


Abstract
A review is presented of some recent advancements in resonant soft X-ray fluorescence spectroscopy applied to molecules. The usefulness of resonant excitation for obtaining site selectivity in studies of the valence band electronic structure of multielement systems is pointed out. The concept of inelastic scattering is discussed for systems with symmetry elements which introduce degeneracy or near-degeneracy of core excited states. The potential of the symmetry selection rules associated with resonant X-ray fluorescence is illustrated in studies of electronic structure as well as molecular dynamics. The use of polarized photons for exciting X-ray emission is discussed, and examples are presented where anisotropy of X-ray emission provides more detailed information. A brief section discusses the experimental considerations relevant for the spectroscopic technique.



© EDP Sciences 1997