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Charge‐inversion reactions of CF + and CCI + ions
Author(s) -
Griffiths W. J.,
Harris F. M.,
Barton J. D.
Publication year - 1989
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290031104
Subject(s) - excited state , chemistry , atomic physics , ion , ionization , spectroscopy , spectral line , excited electronic state , molecule , charge (physics) , mass spectrometry , mass spectrum , physics , organic chemistry , quantum mechanics , astronomy , chromatography
Double‐charge‐transfer spectroscopy has been used to confirm that CF + and CCI + can exist for times greater than several μs in electronically excited states. From the spectra obtained it was shown that those states are 4.7 ± 0.7eV and 3.3 ± 0.5eV above the ground states for CF + and CCI + , respectively. The experimental technique is quite sensitive to the detection of long‐lived excited states and it is shown for CCI + that the relative populations of the excited and ground states are markedly different when CFCI 3 and CF 2 ClCFCI 2 are used as the precursor molecules in the dissociative‐ionization process.