Rotational and hyperfine analysis of the C 4Σ−- X 4Σ− (blue) system of niobium oxide, NbO
Identifieur interne : 003936 ( Main/Exploration ); précédent : 003935; suivant : 003937Rotational and hyperfine analysis of the C 4Σ−- X 4Σ− (blue) system of niobium oxide, NbO
Auteurs : G. Cheval [France] ; J.-L Femenias [France] ; A. J Merer [Canada] ; U. Sassenberg [Suède]Source :
- Journal of Molecular Spectroscopy [ 0022-2852 ] ; 1988.
Abstract
The C4Σ−-X4Σ− (0, 0) band of NbO, whose R heads lie near 4690 Å, has been analyzed from high-resolution grating spectra. Both 4Σ− states have second-order spin-orbit splittings, 4λ = E(4Σ 3 2)-E(4Σ 1 2), of about 60 cm−1, so that they are in good case (a) coupling at low J, although the appearance of the band had been interpreted by previous workers as 4Σ(b)-4Σ(b). the 93Nb nuclear hyperfine structure (I= 9 2) is very impressive in the R1, P1, R4, and P4 branches, with the 10 hyperfine components of a rotational line spread over more than 0.9 cm−1 in the F1 branches. The hyperfine linewidths vary considerably with J, in the manner expected for the rapid spin uncoupling from case (aβ) to (bβJ) which occurs in a high-multiplicity state. The very great hyperfine linewidths arise because the sign of the Fermi contact parameter b (the coefficient of I·S in the magnetic hyperfine Hamiltonian) is different in the two 4Σ states, so that the observed patterns are the sums of the splittings in the two electronic states.
Url:
DOI: 10.1016/0022-2852(88)90111-7
Affiliations:
- Canada, France, Suède
- Provence-Alpes-Côte d'Azur, Svealand
- Nice, Stockholm
- Université Nice Sophia Antipolis
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 003032
- to stream Istex, to step Curation: 002D97
- to stream Istex, to step Checkpoint: 002B08
- to stream Main, to step Merge: 003B30
- to stream Main, to step Curation: 003936
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Rotational and hyperfine analysis of the C 4Σ−- X 4Σ− (blue) system of niobium oxide, NbO</title><author><name sortKey="Cheval, G" sort="Cheval, G" uniqKey="Cheval G" first="G" last="Cheval">G. Cheval</name></author><author><name sortKey="Femenias, J L" sort="Femenias, J L" uniqKey="Femenias J" first="J.-L" last="Femenias">J.-L Femenias</name></author><author><name sortKey="Merer, A J" sort="Merer, A J" uniqKey="Merer A" first="A. J" last="Merer">A. J Merer</name></author><author><name sortKey="Sassenberg, U" sort="Sassenberg, U" uniqKey="Sassenberg U" first="U" last="Sassenberg">U. Sassenberg</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:022B83C10B67C061CAFCD9B8DCFB3523D7C85F1A</idno><date when="1988" year="1988">1988</date><idno type="doi">10.1016/0022-2852(88)90111-7</idno><idno type="url">https://api.istex.fr/document/022B83C10B67C061CAFCD9B8DCFB3523D7C85F1A/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">003032</idno><idno type="wicri:Area/Istex/Curation">002D97</idno><idno type="wicri:Area/Istex/Checkpoint">002B08</idno><idno type="wicri:doubleKey">0022-2852:1988:Cheval G:rotational:and:hyperfine</idno><idno type="wicri:Area/Main/Merge">003B30</idno><idno type="wicri:Area/Main/Curation">003936</idno><idno type="wicri:Area/Main/Exploration">003936</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Rotational and hyperfine analysis of the C 4Σ−- X 4Σ− (blue) system of niobium oxide, NbO</title><author><name sortKey="Cheval, G" sort="Cheval, G" uniqKey="Cheval G" first="G" last="Cheval">G. Cheval</name><affiliation wicri:level="4"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire d'Optique Atomique et Moléculaire, Faculté des Sciences et des Techniques, Université de Nice, Parc Valrose, 06034 Nice Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">Nice</settlement></placeName><orgName type="university">Université Nice Sophia Antipolis</orgName></affiliation></author><author><name sortKey="Femenias, J L" sort="Femenias, J L" uniqKey="Femenias J" first="J.-L" last="Femenias">J.-L Femenias</name><affiliation wicri:level="4"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire d'Optique Atomique et Moléculaire, Faculté des Sciences et des Techniques, Université de Nice, Parc Valrose, 06034 Nice Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Provence-Alpes-Côte d'Azur</region><settlement type="city">Nice</settlement></placeName><orgName type="university">Université Nice Sophia Antipolis</orgName></affiliation></author><author><name sortKey="Merer, A J" sort="Merer, A J" uniqKey="Merer A" first="A. J" last="Merer">A. J Merer</name><affiliation wicri:level="1"><country>Canada</country><wicri:regionArea>Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia</wicri:regionArea><wicri:noRegion>British Columbia</wicri:noRegion></affiliation></author><author><name sortKey="Sassenberg, U" sort="Sassenberg, U" uniqKey="Sassenberg U" first="U" last="Sassenberg">U. Sassenberg</name><affiliation wicri:level="3"><country xml:lang="fr">Suède</country><wicri:regionArea>Department of Physics, University of Stockholm, Vanadisvägen 9, S-113 46,Stockholm</wicri:regionArea><placeName><settlement type="city">Stockholm</settlement><region nuts="2">Svealand</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Molecular Spectroscopy</title><title level="j" type="abbrev">YJMSP</title><idno type="ISSN">0022-2852</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1988">1988</date><biblScope unit="volume">131</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="113">113</biblScope><biblScope unit="page" to="126">126</biblScope></imprint><idno type="ISSN">0022-2852</idno></series><idno type="istex">022B83C10B67C061CAFCD9B8DCFB3523D7C85F1A</idno><idno type="DOI">10.1016/0022-2852(88)90111-7</idno><idno type="PII">0022-2852(88)90111-7</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-2852</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The C4Σ−-X4Σ− (0, 0) band of NbO, whose R heads lie near 4690 Å, has been analyzed from high-resolution grating spectra. Both 4Σ− states have second-order spin-orbit splittings, 4λ = E(4Σ 3 2)-E(4Σ 1 2), of about 60 cm−1, so that they are in good case (a) coupling at low J, although the appearance of the band had been interpreted by previous workers as 4Σ(b)-4Σ(b). the 93Nb nuclear hyperfine structure (I= 9 2) is very impressive in the R1, P1, R4, and P4 branches, with the 10 hyperfine components of a rotational line spread over more than 0.9 cm−1 in the F1 branches. The hyperfine linewidths vary considerably with J, in the manner expected for the rapid spin uncoupling from case (aβ) to (bβJ) which occurs in a high-multiplicity state. The very great hyperfine linewidths arise because the sign of the Fermi contact parameter b (the coefficient of I·S in the magnetic hyperfine Hamiltonian) is different in the two 4Σ states, so that the observed patterns are the sums of the splittings in the two electronic states.</div></front></TEI><affiliations><list><country><li>Canada</li><li>France</li><li>Suède</li></country><region><li>Provence-Alpes-Côte d'Azur</li><li>Svealand</li></region><settlement><li>Nice</li><li>Stockholm</li></settlement><orgName><li>Université Nice Sophia Antipolis</li></orgName></list><tree><country name="France"><region name="Provence-Alpes-Côte d'Azur"><name sortKey="Cheval, G" sort="Cheval, G" uniqKey="Cheval G" first="G" last="Cheval">G. Cheval</name></region><name sortKey="Femenias, J L" sort="Femenias, J L" uniqKey="Femenias J" first="J.-L" last="Femenias">J.-L Femenias</name></country><country name="Canada"><noRegion><name sortKey="Merer, A J" sort="Merer, A J" uniqKey="Merer A" first="A. J" last="Merer">A. J Merer</name></noRegion></country><country name="Suède"><region name="Svealand"><name sortKey="Sassenberg, U" sort="Sassenberg, U" uniqKey="Sassenberg U" first="U" last="Sassenberg">U. Sassenberg</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/OcrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003936 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 003936 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= OcrV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:022B83C10B67C061CAFCD9B8DCFB3523D7C85F1A
|texte= Rotational and hyperfine analysis of the C 4Σ−- X 4Σ− (blue) system of niobium oxide, NbO
}}
| This area was generated with Dilib version V0.6.32. |  |