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On the Bethe-Wigner-Shapiro limit of the rate coefficient for the capture of a rotating quadrupolar polarisable diatom by an ion.

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Nikitin,  E. E.
Emeritus Group of Spectroscopy and Photochemical Kinetics, MPI for Biophysical Chemistry, Max Planck Society;

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Troe,  J.
Emeritus Group of Spectroscopy and Photochemical Kinetics, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Nikitin, E. E., & Troe, J. (2017). On the Bethe-Wigner-Shapiro limit of the rate coefficient for the capture of a rotating quadrupolar polarisable diatom by an ion. Molecular Physics, 115(4), 432-436. doi:10.1080/00268976.2016.1269964.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-E651-4
Abstract
The low-energy (Bethe–Wigner–Shapiro) behaviour of the rate coefficient for capture of a polarisable quadrupolar rotationally excited diatom by an ion is calculated. The multichannel character of capture shows itself in the dependence of the effective attractive potential on the intrinsic angular momentum of the diatom and in a nonadiabatic diagonal correction to the potential. The predicted energy dependence of the rate coefficients is compared with previous numerically accurate results for the capture of H2 molecules by H2+ ions.