Abstract
The pure rotational spectrum of the FeF radical in its 6Δi ground electronic state has been recorded using millimeter/submillimeter direct absorption techniques. Transitions arising from all six spin orbit components have been observed in the v=0, 1. and 2 vibiational levels of 56FeF, the main isotopic species, and also in the less abundant 54Fe isotopomer. Hyperfine splittings, arising from the 19F nuclear spin of I=1/2, were resolved in the majority of transitions recorded, and lambda-doubling interactions were observed in the Ω=3/2. 1/2. and -1/2 spin-orbit ladders. The complete data set has been analyzed using a 6Δ Hamiltonian, and rotational, spin-orbit, spin-spin lambda-doubling, and hyperfine constants determined. This study has conclusively demonstrated that the ground electronic state of FeF is 6Δi. It also suggests that FeF has more covalent character to its bonding than alkaline earth or alkali metal counterparts.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3494-3503 |
| Number of pages | 10 |
| Journal | The Journal of Chemical Physics |
| Volume | 106 |
| Issue number | 9 |
| State | Published - Mar 1 1997 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Millimeter-wave spectroscopy of FeF (X 6Δi) : Rotational analysis and bonding study. / Allen, M. D.; Ziurys, Lucy M.
In: The Journal of Chemical Physics, Vol. 106, No. 9, 01.03.1997, p. 3494-3503.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Millimeter-wave spectroscopy of FeF (X 6Δi)
T2 - Rotational analysis and bonding study
AU - Allen, M. D.
AU - Ziurys, Lucy M
PY - 1997/3/1
Y1 - 1997/3/1
N2 - The pure rotational spectrum of the FeF radical in its 6Δi ground electronic state has been recorded using millimeter/submillimeter direct absorption techniques. Transitions arising from all six spin orbit components have been observed in the v=0, 1. and 2 vibiational levels of 56FeF, the main isotopic species, and also in the less abundant 54Fe isotopomer. Hyperfine splittings, arising from the 19F nuclear spin of I=1/2, were resolved in the majority of transitions recorded, and lambda-doubling interactions were observed in the Ω=3/2. 1/2. and -1/2 spin-orbit ladders. The complete data set has been analyzed using a 6Δ Hamiltonian, and rotational, spin-orbit, spin-spin lambda-doubling, and hyperfine constants determined. This study has conclusively demonstrated that the ground electronic state of FeF is 6Δi. It also suggests that FeF has more covalent character to its bonding than alkaline earth or alkali metal counterparts.
AB - The pure rotational spectrum of the FeF radical in its 6Δi ground electronic state has been recorded using millimeter/submillimeter direct absorption techniques. Transitions arising from all six spin orbit components have been observed in the v=0, 1. and 2 vibiational levels of 56FeF, the main isotopic species, and also in the less abundant 54Fe isotopomer. Hyperfine splittings, arising from the 19F nuclear spin of I=1/2, were resolved in the majority of transitions recorded, and lambda-doubling interactions were observed in the Ω=3/2. 1/2. and -1/2 spin-orbit ladders. The complete data set has been analyzed using a 6Δ Hamiltonian, and rotational, spin-orbit, spin-spin lambda-doubling, and hyperfine constants determined. This study has conclusively demonstrated that the ground electronic state of FeF is 6Δi. It also suggests that FeF has more covalent character to its bonding than alkaline earth or alkali metal counterparts.
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UR - http://www.scopus.com/inward/citedby.url?scp=0000643550&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0000643550
VL - 106
SP - 3494
EP - 3503
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 9
ER -