We present experimental evidence for pronounced electron transfer from C to F+ happening during the breakup of CH3F+ ions in gas phase produced by resonant photoemission following F 1s to 6a1* core excitation of CH3F. 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+ and the CH2+ fragments, indicating that CH2+ is produced by electron transfer from C to F+, 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.

Electron transfer during the dissociation of CH3F+ produced by resonant photoemission following F 1s excitation

V Carravetta;
2007

Abstract

We present experimental evidence for pronounced electron transfer from C to F+ happening during the breakup of CH3F+ ions in gas phase produced by resonant photoemission following F 1s to 6a1* core excitation of CH3F. 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+ and the CH2+ fragments, indicating that CH2+ is produced by electron transfer from C to F+, 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.
2007
Istituto per i Processi Chimico-Fisici - IPCF
CH3F
resonant photoemission
dissociation
experiment
theory
File in questo prodotto:
File Dimensione Formato  
prod_39765-doc_708.pdf

non disponibili

Descrizione: Electron transfer during the dissociation of CH3F+ produced by resonant photoemission following F 1s excitation
Dimensione 150.48 kB
Formato Adobe PDF
150.48 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/46556
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact