Low-energy reactions of CF22+ dications with atoms and molecules

Abu-Haija, O. ; Kamber, E. Y. ; Mathur, D. (2005) Low-energy reactions of CF22+ dications with atoms and molecules Chemical Physics Letters, 408 (1-3). pp. 5-12. ISSN 0009-2614

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.cplett.2005.03.130


State-selective, energy- and angle-resolved collisional interactions of CF22+ dications with atomic and molecular gases are studied at low collision energies. Single-electron transfer measurements help resolve the prevailing ambiguity vis-a-vis the lowest ionization energy of CF22+, yielding a value of 20.55 ± 0.5 eV. Ground state (1Σ g+) CF22+ captures an electron from Ar, D2, N2 and CF4 predominantly into the ground 6a1 orbital of CF2+ but in CF22+-O2 and H2O collisions, the dominant capture channel is the excited (4b2) orbital of CF2+ . Data are qualitatively interpreted using 'reaction windows' calculated using the Landau-Zener and extended over-the-barrier models.

Item Type:Article
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ID Code:77593
Deposited On:13 Jan 2012 11:43
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