File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The Schumann-Runge absorption bands of 16O 18O in the wavelength region 175-205 nm and spectroscopic constants of isotopic oxygen molecules

TitleThe Schumann-Runge absorption bands of 16O 18O in the wavelength region 175-205 nm and spectroscopic constants of isotopic oxygen molecules
Authors
Issue Date1989
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/yjmsp
Citation
Journal Of Molecular Spectroscopy, 1989, v. 134 n. 2, p. 362-389 How to Cite?
AbstractHigh-resolution absorption spectra of 16O 18O have been photographed, at 300 and 78 K, throughout the region 175-205 nm, in the first order of a 2400 lines/mm grating in a 6.65-m vacuum spectrograph at a dispersion of 0.06 nm/mm. Precise wavelength measurements and rotational analyses of the Schumann-Runge bands (2,0)-16,0) have been completed. Spectroscopic constants of the B 3Σ u - state of 16O 18O for 2 ≤ v ≤ 16 have been determined. Rotational perturbations are observed in the (16,0) band. The concept of mass-reduced vibrational quantum numbers, μ - 1 2(v + 1 2), has been used to combined isotopic molecular constants from 16O 2, 16O 18O, and 18O 2. It has been shown that the functions of the vibrational spacings, μ 1 2ΔG v+ 1 2, rotational constants μB v, and μ 2D v, spin-spin constants, λ v, and spin-rotation constants, μγ v, are isotopically invariant functions of μ - 1 2(v + 1 2). The isotopic dependence of the spin-spin constants λ v is discussed in terms of the unique perturber approximation. Values of γ v and λ v have been obtained by interpolation for the levels v = 2-8, which correspond to bands of 16O 18O with unresolved triplet structure. In a theoretical investigation, the calculations of level shifts and perturbations have been reexamined. Excellent agreement between calculated and experimental level shifts has been obtained for all three isotopic molecules. © 1989.
Persistent Identifierhttp://hdl.handle.net/10722/147698
ISSN
2015 Impact Factor: 1.593
2015 SCImago Journal Rankings: 0.543
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheung, ASCen_HK
dc.contributor.authorYoshino, Ken_HK
dc.contributor.authorFreeman, DEen_HK
dc.contributor.authorFriedman, RSen_HK
dc.contributor.authorDalgarno, Aen_HK
dc.contributor.authorParkinson, WHen_HK
dc.date.accessioned2012-05-29T06:08:46Z-
dc.date.available2012-05-29T06:08:46Z-
dc.date.issued1989en_HK
dc.identifier.citationJournal Of Molecular Spectroscopy, 1989, v. 134 n. 2, p. 362-389en_HK
dc.identifier.issn0022-2852en_HK
dc.identifier.urihttp://hdl.handle.net/10722/147698-
dc.description.abstractHigh-resolution absorption spectra of 16O 18O have been photographed, at 300 and 78 K, throughout the region 175-205 nm, in the first order of a 2400 lines/mm grating in a 6.65-m vacuum spectrograph at a dispersion of 0.06 nm/mm. Precise wavelength measurements and rotational analyses of the Schumann-Runge bands (2,0)-16,0) have been completed. Spectroscopic constants of the B 3Σ u - state of 16O 18O for 2 ≤ v ≤ 16 have been determined. Rotational perturbations are observed in the (16,0) band. The concept of mass-reduced vibrational quantum numbers, μ - 1 2(v + 1 2), has been used to combined isotopic molecular constants from 16O 2, 16O 18O, and 18O 2. It has been shown that the functions of the vibrational spacings, μ 1 2ΔG v+ 1 2, rotational constants μB v, and μ 2D v, spin-spin constants, λ v, and spin-rotation constants, μγ v, are isotopically invariant functions of μ - 1 2(v + 1 2). The isotopic dependence of the spin-spin constants λ v is discussed in terms of the unique perturber approximation. Values of γ v and λ v have been obtained by interpolation for the levels v = 2-8, which correspond to bands of 16O 18O with unresolved triplet structure. In a theoretical investigation, the calculations of level shifts and perturbations have been reexamined. Excellent agreement between calculated and experimental level shifts has been obtained for all three isotopic molecules. © 1989.en_HK
dc.languageengen_US
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/yjmspen_HK
dc.relation.ispartofJournal of Molecular Spectroscopyen_HK
dc.titleThe Schumann-Runge absorption bands of 16O 18O in the wavelength region 175-205 nm and spectroscopic constants of isotopic oxygen moleculesen_HK
dc.typeArticleen_HK
dc.identifier.emailCheung, ASC:hrsccsc@hku.hken_HK
dc.identifier.authorityCheung, ASC=rp00676en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/0022-2852(89)90323-8-
dc.identifier.scopuseid_2-s2.0-0000551749en_HK
dc.identifier.volume134en_HK
dc.identifier.issue2en_HK
dc.identifier.spage362en_HK
dc.identifier.epage389en_HK
dc.identifier.isiWOS:A1989U180500012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCheung, ASC=7401806538en_HK
dc.identifier.scopusauthoridYoshino, K=7401650773en_HK
dc.identifier.scopusauthoridFreeman, DE=23021313300en_HK
dc.identifier.scopusauthoridFriedman, RS=7401990536en_HK
dc.identifier.scopusauthoridDalgarno, A=22987883200en_HK
dc.identifier.scopusauthoridParkinson, WH=7006361375en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats