Translational energy spectrometry (TES) and collision‐induced dissociation (CID) experiments on the singly charged ions, CH2CI2+˙, CH2Br2+˙ and CH2I2+˙ have been performed on a double‐focusing mass spectrometer. No TES peaks could be seen from CH2CI2+˙ due to inadequate sensitivity. The measured energies of a number of non‐dissociative electronic states of the incident ions of CH2ID2+˙ and CH2Br2+˙ are in agreement with energies reported by photoelectron spectroscopy. The latter technique indicates the presence of a weak band in the photoelectron spectrum kof CH2Br2 lying 8.4–9.4eV above its ground state. This band is evident in the TES spectrum of CH2Br2+˙ incident ions. Other electronic ststes are also observed and tentatively assigned. Copyright © 1992 John Wiley & Sons, Ltd.
Investigation of Singly Charged Dihalo-Methanes by Collision Spectroscopy
BORTOLINI, Olga;
1992
Abstract
Translational energy spectrometry (TES) and collision‐induced dissociation (CID) experiments on the singly charged ions, CH2CI2+˙, CH2Br2+˙ and CH2I2+˙ have been performed on a double‐focusing mass spectrometer. No TES peaks could be seen from CH2CI2+˙ due to inadequate sensitivity. The measured energies of a number of non‐dissociative electronic states of the incident ions of CH2ID2+˙ and CH2Br2+˙ are in agreement with energies reported by photoelectron spectroscopy. The latter technique indicates the presence of a weak band in the photoelectron spectrum kof CH2Br2 lying 8.4–9.4eV above its ground state. This band is evident in the TES spectrum of CH2Br2+˙ incident ions. Other electronic ststes are also observed and tentatively assigned. Copyright © 1992 John Wiley & Sons, Ltd.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
