Electron transfer in collisions between low-n, n = 12, Rydberg atoms and targets that attach low-energy electrons can lead to the formation of heavy-Rydberg ion-pair states comprising a weakly-bound positive-negative ion pair that orbit each other at large separations. Measurements of the velocity and angular distribution of ion-pair states produced in collisions with 1,1,1-C2Cl3F3, CBrCl3, BrCN, and Fe(CO)5 are used to show that electron transfer reactions furnish a new technique with which to examine the lifetime and decay energetics of the excited intermediates formed during dissociative electron capture. The results are analyzed with the aid of Monte Carlo simulations based on the free electron model of Rydberg atom collisions. The data further highlight the capabilities of Rydberg atoms as a microscale laboratory in which to probe the dynamics of electron attachment reactions.
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7 October 2016
Research Article|
October 07 2016
Probing dissociative electron attachment through heavy-Rydberg ion-pair production in Rydberg atom collisions
S. Buathong
;
S. Buathong
Department of Physics and Astronomy,
Rice University
, Houston, Texas 77005-1892, USA
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M. Kelley;
M. Kelley
Department of Physics and Astronomy,
Rice University
, Houston, Texas 77005-1892, USA
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F. B. Dunning
F. B. Dunning
Department of Physics and Astronomy,
Rice University
, Houston, Texas 77005-1892, USA
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J. Chem. Phys. 145, 134309 (2016)
Article history
Received:
August 18 2016
Accepted:
September 23 2016
Citation
S. Buathong, M. Kelley, F. B. Dunning; Probing dissociative electron attachment through heavy-Rydberg ion-pair production in Rydberg atom collisions. J. Chem. Phys. 7 October 2016; 145 (13): 134309. https://doi.org/10.1063/1.4964326
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