Auger electron spectra of CF3CN, CF3Cl, CF2Cl2 and CFCl3

The F KVV and Cl LVV Auger electron spectra of the chlorofluorocarbon molec ules CF3Cl, CF2Cl2 and CFCl3, as well as the F, N and C KVV Auger spectra o f the CF3CN molecule, have been observed using electron-impact excitation. The spectra have been interpreted with the help of ab initio calculations f or the local density of states. The fragmentations specific to the atomic s ite where the core hole is created, observed for these molecules, are discu ssed in connection of characters of the Anger final states analyzed in the present study. (C) 1999 Published by Elsevier Science B.V. All rights reser ved.