The millimeter-wave spectrum of the MgOH radical (X 2Σ+)

W. L. Barclay; M. A. Anderson; L. M. Ziurys

doi:10.1016/0009-2614(92)85959-E

The millimeter-wave spectrum of the MgOH radical (X ²Σ⁺)

W. L. Barclay
, M. A. Anderson
, L. M. Ziurys

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

The pure rotational spectrum of the ground electronic state (X ²Σ⁺) of the MgOH radical has been observed using millimeter/sub-millimeter direct absorption spectroscopy, as well as that of MgOD, and the less abundant magnesium isotopically-substituted species ²⁵MgOH and ²⁶MgOH. The free radicals were created in a Broida-type oven by the reaction of metal vapor with hydrogen peroxide. The spin-rotation splitting was readily observed in these data; however, the hyperfine structure was only resolved for ²⁵MgOH. The rotational and spin-rotation constants of the radicals have been determined from a non-linear least-squares fit using a ²Σ Hamiltonian. The ²⁵Mg hyperfine constants are also estimated.

Original language	English (US)
Pages (from-to)	225-232
Number of pages	8
Journal	Chemical Physics Letters
Volume	196
Issue number	3-4
DOIs	https://doi.org/10.1016/0009-2614(92)85959-E
State	Published - Aug 14 1992

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/0009-2614(92)85959-E

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@article{dc9554b95b2d459dabd3b02126f04f30,

title = "The millimeter-wave spectrum of the MgOH radical (X 2Σ+)",

abstract = "The pure rotational spectrum of the ground electronic state (X 2Σ+) of the MgOH radical has been observed using millimeter/sub-millimeter direct absorption spectroscopy, as well as that of MgOD, and the less abundant magnesium isotopically-substituted species 25MgOH and 26MgOH. The free radicals were created in a Broida-type oven by the reaction of metal vapor with hydrogen peroxide. The spin-rotation splitting was readily observed in these data; however, the hyperfine structure was only resolved for 25MgOH. The rotational and spin-rotation constants of the radicals have been determined from a non-linear least-squares fit using a 2Σ Hamiltonian. The 25Mg hyperfine constants are also estimated.",

author = "Barclay, \{W. L.\} and Anderson, \{M. A.\} and Ziurys, \{L. M.\}",

note = "Funding Information: This research was supported by NSF grants AST-90-58467 (Presidential Young Investigator Award) and AST-91-10701, and NASA grant NAGW 2989. MAA acknowledges the NASA Space Grant Program at ASU for his fellowship. LMZ thanks the staff of NRAO, Tucson, for their multiple equipment loans. We also thank R. Claude Woods for use of his 2E Hamiltonian.",

year = "1992",

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doi = "10.1016/0009-2614(92)85959-E",

language = "English (US)",

volume = "196",

pages = "225--232",

journal = "Chemical Physics Letters",

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T1 - The millimeter-wave spectrum of the MgOH radical (X 2Σ+)

AU - Barclay, W. L.

AU - Anderson, M. A.

AU - Ziurys, L. M.

N1 - Funding Information: This research was supported by NSF grants AST-90-58467 (Presidential Young Investigator Award) and AST-91-10701, and NASA grant NAGW 2989. MAA acknowledges the NASA Space Grant Program at ASU for his fellowship. LMZ thanks the staff of NRAO, Tucson, for their multiple equipment loans. We also thank R. Claude Woods for use of his 2E Hamiltonian.

PY - 1992/8/14

Y1 - 1992/8/14

N2 - The pure rotational spectrum of the ground electronic state (X 2Σ+) of the MgOH radical has been observed using millimeter/sub-millimeter direct absorption spectroscopy, as well as that of MgOD, and the less abundant magnesium isotopically-substituted species 25MgOH and 26MgOH. The free radicals were created in a Broida-type oven by the reaction of metal vapor with hydrogen peroxide. The spin-rotation splitting was readily observed in these data; however, the hyperfine structure was only resolved for 25MgOH. The rotational and spin-rotation constants of the radicals have been determined from a non-linear least-squares fit using a 2Σ Hamiltonian. The 25Mg hyperfine constants are also estimated.

AB - The pure rotational spectrum of the ground electronic state (X 2Σ+) of the MgOH radical has been observed using millimeter/sub-millimeter direct absorption spectroscopy, as well as that of MgOD, and the less abundant magnesium isotopically-substituted species 25MgOH and 26MgOH. The free radicals were created in a Broida-type oven by the reaction of metal vapor with hydrogen peroxide. The spin-rotation splitting was readily observed in these data; however, the hyperfine structure was only resolved for 25MgOH. The rotational and spin-rotation constants of the radicals have been determined from a non-linear least-squares fit using a 2Σ Hamiltonian. The 25Mg hyperfine constants are also estimated.

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DO - 10.1016/0009-2614(92)85959-E

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VL - 196

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JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

The millimeter-wave spectrum of the MgOH radical (X ²Σ⁺)

Abstract

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