Chemical Physics Letters, Vol.379, No.3-4, 248-254, 2003
Kinetic energy distribution and anisotropy of fragment ions from SF6 by photoexcitation of a sulfur 2p-electron
The kinetic energy (KE) distribution and asymmetry parameter beta have been studied for photofragmentation of SF6 near the sulfur 2p ionization edges at 170-208 eV. The relative ion yield at KE > 5 eV is higher in the post-edge than in the pre-edge region, whereas beta is lower by similar to0.06 in the post-edge region. These results are ascribed to LVV Auger decay occurring above the edges. At KE > 2 eV the distribution curve for core excitation to the (2t(1u))(-1) (6a(1g))(1) state resembles that for valence-electron ionization, suggesting participation of shake-up satellite states in production of fast F+ ions. (C) 2003 Elsevier B.V. All rights reserved.