Rest frequencies for alkaline earth hydroxide radicals (X2Σ+)

Lucy M Ziurys, D. A. Fletcher, M. A. Anderson, W. L. Barclay

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Rest frequencies for the pure rotational transitions of the alkaline earth hydroxide radicals MgOH, CaOH, SrOH, and BaOH are presented. These data were obtained using millimeter/submillimeter direct absorption spectroscopy in the range 100-400 GHz. The hydroxide molecules, which all have 2Σ+ ground electronic states, were created by the reaction of hydrogen peroxide and metal vapor, produced in a Broida-type oven. Transitions arising in the ground (000) state as well as excited vibrational modes (0110), (0200), (0220), and (100), were recorded. Fine-structure splittings were resolved in every transition. The data were analyzed using a 2Σ Hamiltonian, and rotational, fine-structure, and l-type doubling constants were determined for the radicals. These measurements will enable the identification of the alkaline earth hydroxide species in the interstellar medium.

Original languageEnglish (US)
Pages (from-to)425-434
Number of pages10
JournalAstrophysical Journal, Supplement Series
Volume102
Issue number2
DOIs
StatePublished - Feb 1996
Externally publishedYes

Fingerprint

hydroxides
hydroxide
fine structure
metal vapors
ovens
atomic absorption spectroscopy
hydrogen peroxide
vibration mode
absorption spectroscopy
vapors
ground state
metal
electronics
molecules
oven

Keywords

  • Line: identification
  • Methods: laboratory
  • Molecular data
  • Techniques: spectroscopic

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Rest frequencies for alkaline earth hydroxide radicals (X2Σ+). / Ziurys, Lucy M; Fletcher, D. A.; Anderson, M. A.; Barclay, W. L.

In: Astrophysical Journal, Supplement Series, Vol. 102, No. 2, 02.1996, p. 425-434.

Research output: Contribution to journalArticle

Ziurys, Lucy M ; Fletcher, D. A. ; Anderson, M. A. ; Barclay, W. L. / Rest frequencies for alkaline earth hydroxide radicals (X2Σ+). In: Astrophysical Journal, Supplement Series. 1996 ; Vol. 102, No. 2. pp. 425-434.
@article{1725f5170f614b4598abc3ec7231b4d6,
title = "Rest frequencies for alkaline earth hydroxide radicals (X2Σ+)",
abstract = "Rest frequencies for the pure rotational transitions of the alkaline earth hydroxide radicals MgOH, CaOH, SrOH, and BaOH are presented. These data were obtained using millimeter/submillimeter direct absorption spectroscopy in the range 100-400 GHz. The hydroxide molecules, which all have 2Σ+ ground electronic states, were created by the reaction of hydrogen peroxide and metal vapor, produced in a Broida-type oven. Transitions arising in the ground (000) state as well as excited vibrational modes (0110), (0200), (0220), and (100), were recorded. Fine-structure splittings were resolved in every transition. The data were analyzed using a 2Σ Hamiltonian, and rotational, fine-structure, and l-type doubling constants were determined for the radicals. These measurements will enable the identification of the alkaline earth hydroxide species in the interstellar medium.",
keywords = "Line: identification, Methods: laboratory, Molecular data, Techniques: spectroscopic",
author = "Ziurys, {Lucy M} and Fletcher, {D. A.} and Anderson, {M. A.} and Barclay, {W. L.}",
year = "1996",
month = "2",
doi = "10.1086/192265",
language = "English (US)",
volume = "102",
pages = "425--434",
journal = "Astrophysical Journal, Supplement Series",
issn = "0067-0049",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - Rest frequencies for alkaline earth hydroxide radicals (X2Σ+)

AU - Ziurys, Lucy M

AU - Fletcher, D. A.

AU - Anderson, M. A.

AU - Barclay, W. L.

PY - 1996/2

Y1 - 1996/2

N2 - Rest frequencies for the pure rotational transitions of the alkaline earth hydroxide radicals MgOH, CaOH, SrOH, and BaOH are presented. These data were obtained using millimeter/submillimeter direct absorption spectroscopy in the range 100-400 GHz. The hydroxide molecules, which all have 2Σ+ ground electronic states, were created by the reaction of hydrogen peroxide and metal vapor, produced in a Broida-type oven. Transitions arising in the ground (000) state as well as excited vibrational modes (0110), (0200), (0220), and (100), were recorded. Fine-structure splittings were resolved in every transition. The data were analyzed using a 2Σ Hamiltonian, and rotational, fine-structure, and l-type doubling constants were determined for the radicals. These measurements will enable the identification of the alkaline earth hydroxide species in the interstellar medium.

AB - Rest frequencies for the pure rotational transitions of the alkaline earth hydroxide radicals MgOH, CaOH, SrOH, and BaOH are presented. These data were obtained using millimeter/submillimeter direct absorption spectroscopy in the range 100-400 GHz. The hydroxide molecules, which all have 2Σ+ ground electronic states, were created by the reaction of hydrogen peroxide and metal vapor, produced in a Broida-type oven. Transitions arising in the ground (000) state as well as excited vibrational modes (0110), (0200), (0220), and (100), were recorded. Fine-structure splittings were resolved in every transition. The data were analyzed using a 2Σ Hamiltonian, and rotational, fine-structure, and l-type doubling constants were determined for the radicals. These measurements will enable the identification of the alkaline earth hydroxide species in the interstellar medium.

KW - Line: identification

KW - Methods: laboratory

KW - Molecular data

KW - Techniques: spectroscopic

UR - http://www.scopus.com/inward/record.url?scp=4243794054&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4243794054&partnerID=8YFLogxK

U2 - 10.1086/192265

DO - 10.1086/192265

M3 - Article

VL - 102

SP - 425

EP - 434

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

SN - 0067-0049

IS - 2

ER -