Published December 1, 1989
| Published
Journal Article
Open
Direct measurement of the HCl dimer tunneling rate and Cl isotope dependence by far-infrared laser sideband spectroscopy of planar supersonic jets
- Creators
-
Blake, Geoffrey A.
- Bumgarner, R. E.
Abstract
The large amplitude tunneling motion of the HCl dimer has been directly studied with a tunable far‐infrared laser sideband/two-dimensional free jet expansion spectrometer at hyperfine resolution. Rotationless tunneling rates for the three common chlorine isotopic forms are v(35–35)=463 979.2(1) MHz, v(35–37)=463 357.7(1) MHz, and v(37–37)=462 733.7(3) MHz. Both the rotational constants and hyperfine parameters indicate that the vibrationally averaged structure shows little variation within a given tunneling state, with both HCl bond angles giving an average projection on the a-axis of 47° in all states with resolved hyperfine patterns.
Additional Information
© 1989 American Institute of Physics. Received 23 August 1989; accepted 21 September 1989. This work was supported in part by grants from the Beckman Institute and the Packard Foundation. R. E. Bumgamer would like to acknowledge support from a Bantrell Fellowship administered by Caltech. We thank C. M. Lovejoy and D. J. Nesbitt for communication of their IR predictions prior to publication.Attached Files
Published - BLAjcp89.pdf
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Additional details
- Eprint ID
- 31424
- Resolver ID
- CaltechAUTHORS:20120510-155150233
- Caltech Beckman Institute
- David and Lucile Packard Foundation
- Caltech Bantrell Fellowship
- Created
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2012-05-11Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences