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Fourier transform microwave spectroscopy of LiNH2 and NaNH2 (~X1A1): Comparing quadrupole hyperfine interactions
Burton, Mark
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https://hdl.handle.net/2142/104402
Description
- Title
- Fourier transform microwave spectroscopy of LiNH2 and NaNH2 (~X1A1): Comparing quadrupole hyperfine interactions
- Author(s)
- Burton, Mark
- Contributor(s)
- Ziurys, Lucy M.
- Sheridan, Phillip M.
- Russ, Benjamin
- Issue Date
- 2019-06-19
- Keyword(s)
- Metal containing
- Date of Ingest
- 2019-07-15T22:16:51Z
- 2020-01-25T19:31:10Z
- Abstract
- Rotational spectra of LiNH$_{2}$ and NaNH$_{2}$ in their \~{X}$^{1}$A$_{1}$ ground electronic states have been recorded using pulsed-beam Fourier transform spectroscopy in the frequency range 22-58 GHz. These species were synthesized in a DC discharge by the reaction of ammonia and the respective laser-ablated alkali metal, in argon carrier gas. Observed transitions were analyzed with previously-measured millimeter-wave frequencies, improving previous rotational constants and determining the metal electric quadrupole hyperfine parameter, $\chi$$_{aa}$, for both species. We find that $\chi$$_{aa}$ (Li) = 0.494 and $\chi$$_{aa}$ (Na) = -7.688. We also compare our results to DFT calculations. A Townes-Dailey analysis of the quadrupole constants suggest that the bonding of the –NH$_{2}$ ligand to lithium and sodium is comparable.
- Publisher
- International Symposium on Molecular Spectroscopy
- Type of Resource
- text
- Genre of Resource
- Conference Paper / Presentation
- Language
- eng
- Permalink
- http://hdl.handle.net/2142/104402
- DOI
- https://doi.org/10.15278/isms.2019.WJ07
- Copyright and License Information
- Copyright 2019 Mark Burton
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