Electron transfer during the dissociation of CH{sub 3}F{sup +} produced by resonant photoemission following F 1s excitation
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)
- Japan Synchrotron Radiation Research Institute, Sayo-gun, Hyogo 679-5198 (Japan)
- Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554 (Japan)
We present experimental evidence for pronounced electron transfer from C to F{sup +} happening during the breakup of CH{sub 3}F{sup +} ions in gas phase produced by resonant photoemission following F 1s{yields}6a{sub 1}{sup *} core excitation of CH{sub 3}F. We measured the momentum of the ionic fragments in coincidence with the F KVV Auger electrons that show a Doppler shift reflecting the motion of the F nucleus. The correlation between Doppler shift and ion momentum is opposite for the F{sup +} and the CH{sub 2}{sup +} fragments, indicating that CH{sub 2}{sup +} is produced by electron transfer from C to F{sup +}, after the Auger electron emission from excited moving F. This finding is rationalized by calculations of the potential energy curves of the main states involved in the excitation and decay processes.
- OSTI ID:
- 21028012
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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