Published January 3, 2013
| public
Journal Article
Spectroscopic studies of the Jahn-Teller effect in the Ã^2E" state of the nitrate radical NO^3
Abstract
We report spectra of the forbidden origin and several hot bands of the òE" ← X²A'₂ transition of NO₃ using cavity ringdown and enhanced absorption spectroscopies. We directly observed the origin at T₀(Ã) = 7062.25(50) cm⁻¹, which arises from a magnetic-dipole or rotationally-forbidden transition. We used this assignment to estimate fundamental frequencies in the à state. The Jahn Teller (JT) effect splits the vibronic levels E(Γ_(ev)) of the V'₄ = 1, E″⊗e′ manifold. We measured E(E″)–E(A"₁) to be 1.6(1.9) cm⁻¹ implying weak JT effect in the Q₄ mode. We discuss the possible assignment of a band observed near the origin to either spin-orbit splitting or an A"₂ level.
Additional Information
© 2012 Elsevier B.V. Received 10 July 2012. In final form 30 October 2012. Available online 8 November 2012. This Letter was supported by NSF grant CHE-0957490. K.T. thanks the support of both NSF and the EPA STAR Graduate Fellowship Programs. EPA has not officially endorsed this publication. N.C.E. thanks the support of the Camille and Henry Dreyfus Post-doctoral Fellowship Program. D. J. R. thanks the support of the NASA Earth System Science Fellowship Program. We also thank John Stanton, Terry Miller, and Marilyn Jacox for useful discussion, and Jaron Hansen and Pin Chen for equipment.Additional details
- Eprint ID
- 36790
- Resolver ID
- CaltechAUTHORS:20130206-072838451
- CHE-0957490
- NSF
- NSF Graduate Fellowship
- Environmental Protection Agency (EPA)
- Camille and Henry Dreyfus Foundation
- NASA Earth Systems Science Fellowship
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2013-02-08Created from EPrint's datestamp field
- Updated
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2023-02-27Created from EPrint's last_modified field