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Article: Rotational Structure and Perturbations in the B4Π-X4Σ- (1, 0) Band of VO

TitleRotational Structure and Perturbations in the B4Π-X4Σ- (1, 0) Band of VO
Authors
Issue Date1994
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/yjmsp
Citation
Journal Of Molecular Spectroscopy, 1994, v. 163 n. 2, p. 443-458 How to Cite?
AbstractThe (1, 0) band of the B 4Π-X 4Σ - transition of VO has been analyzed rotationally, from Doppler-limited discharge emission and laser excitation spectra. The B 4Π, v = 1 level is heavily perturbed by a vibrational level of the a 2Σ + state and, with the extra complexity caused by the 51V nuclear hyperfine structure, could be analyzed fully only by extensive wavelength-resolved laser-induced fluorescence experiments. Making use of data from the corresponding perturbations in B 4Π, v = 0 and assuming that the vibrational dependence of the spin-orbit matrix element can be represented by a vibrational overlap integral, it has been possible to deduce the vibrational numbering of the perturbing a 2Σ + state without having to use isotopic data. It is found that the a 2Σ +, v = 0 level lies near 10412 cm -1, and that B 4Π, v = 1 is perturbed by a 2Σ +, v = 3. The a 2Σ + state comes from the same electron configuration, (4sσ) (3dδ) 2, as the X 4Σ - ground state. The phases of the spin-orbit matrix elements between 4Π and 2Σ + states must be chosen consistently in order to obtain a correct understanding of the rotational perturbations. A consistent set of phases is obtained with 〈 2Σ +, F 2 | H SO | 4Π 1 2, f〉 = 〈 2Σ +, F 1 | H SO | 4Π 1 2, e〉 = [formula]〈 2Σ +, F 2 | H SO | 4Π - 1 2, f〉 = -〈 2Σ +, F 1 | H SO | 4Π - 1 2, e〉 = A/2,where A = 〈 2Σ + || H spin-orbit || 4Π〉. © 1994 Academic Press. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/147712
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.authorHajigeorgiou, PGen_HK
dc.contributor.authorHuang, Gen_HK
dc.contributor.authorHuang, SZen_HK
dc.contributor.authorMerer, AJen_HK
dc.date.accessioned2012-05-29T06:08:51Z-
dc.date.available2012-05-29T06:08:51Z-
dc.date.issued1994en_HK
dc.identifier.citationJournal Of Molecular Spectroscopy, 1994, v. 163 n. 2, p. 443-458en_HK
dc.identifier.issn0022-2852en_HK
dc.identifier.urihttp://hdl.handle.net/10722/147712-
dc.description.abstractThe (1, 0) band of the B 4Π-X 4Σ - transition of VO has been analyzed rotationally, from Doppler-limited discharge emission and laser excitation spectra. The B 4Π, v = 1 level is heavily perturbed by a vibrational level of the a 2Σ + state and, with the extra complexity caused by the 51V nuclear hyperfine structure, could be analyzed fully only by extensive wavelength-resolved laser-induced fluorescence experiments. Making use of data from the corresponding perturbations in B 4Π, v = 0 and assuming that the vibrational dependence of the spin-orbit matrix element can be represented by a vibrational overlap integral, it has been possible to deduce the vibrational numbering of the perturbing a 2Σ + state without having to use isotopic data. It is found that the a 2Σ +, v = 0 level lies near 10412 cm -1, and that B 4Π, v = 1 is perturbed by a 2Σ +, v = 3. The a 2Σ + state comes from the same electron configuration, (4sσ) (3dδ) 2, as the X 4Σ - ground state. The phases of the spin-orbit matrix elements between 4Π and 2Σ + states must be chosen consistently in order to obtain a correct understanding of the rotational perturbations. A consistent set of phases is obtained with 〈 2Σ +, F 2 | H SO | 4Π 1 2, f〉 = 〈 2Σ +, F 1 | H SO | 4Π 1 2, e〉 = [formula]〈 2Σ +, F 2 | H SO | 4Π - 1 2, f〉 = -〈 2Σ +, F 1 | H SO | 4Π - 1 2, e〉 = A/2,where A = 〈 2Σ + || H spin-orbit || 4Π〉. © 1994 Academic Press. All rights reserved.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.titleRotational Structure and Perturbations in the B4Π-X4Σ- (1, 0) Band of VOen_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.doi10.1006/jmsp.1994.1039en_HK
dc.identifier.scopuseid_2-s2.0-0001745017en_HK
dc.identifier.volume163en_HK
dc.identifier.issue2en_HK
dc.identifier.spage443en_HK
dc.identifier.epage458en_HK
dc.identifier.isiWOS:A1994MW27900012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCheung, ASC=7401806538en_HK
dc.identifier.scopusauthoridHajigeorgiou, PG=6602878591en_HK
dc.identifier.scopusauthoridHuang, G=23014750900en_HK
dc.identifier.scopusauthoridHuang, SZ=24283834900en_HK
dc.identifier.scopusauthoridMerer, AJ=6603864922en_HK

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