Journal of Physical Chemistry p. 4009 - 4012 (1988)
Update date:2022-08-11
Topics:
Loh, S. K.
Lian, Li
Hales, David A.
Armentrout P. B.
In this paper, we present collision-induced-dissociation (CID) studies of gas-phase Fe2+.Experiments were performed on a new guided ion beam mass spectrometer designed to produce cold, mass-selected ions.The energy dependence of the cross section for CID with Xe is presented.Interpretation of the cross-section treshold is consistent with theoretical models and gives Ddeg (Fe2+) = 2.72 +/- 0.07 eV.Combined with the known ionization potentials and electron affinities of Fe and Fe2, this bond energy also provides Ddeg (Fe2) = 1.15 +/- 0.09 eV and Ddeg (Fe2-) = 1.90 +/- 0.09 eV.These dimers are discussed with regard to previous work and their respective bonding schemes.
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