File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The ν1 and ν2 + ν4 bands in the infrared spectrum of HN3

TitleThe ν1 and ν2 + ν4 bands in the infrared spectrum of HN3
Authors
Issue Date1988
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/yjmsp
Citation
Journal Of Molecular Spectroscopy, 1988, v. 127 n. 2, p. 509-526 How to Cite?
AbstractThe ν 1 fundamental (3339 cm -1) and the ν 2 + ν 4 combination band (3251 cm -1) in the infrared spectrum of NH 3 have been analyzed from high-resolution Fourier transform spectra. Extensive perturbations in ν 2 + ν 4 have been assigned to interactions with ν 2 + ν 5 + ν 6 (A″) on the basis of detailed intensity considerations: it is found that the matrix element between the two vibrational states is roughly proportional to K, which indicates an a-axis Coriolis mechanism. Although the ν 2 + ν 5 + ν 6 level has A″ symmetry it gives rise to an apparently normal A0type band (except for the absence of K = 0), where even the K = 1 asymmetry splitting is reversed so that it is in the sense expected for an A′ level. The reason for this reversal is shown to be the unusually strong Coriolis interaction between ν 5 and ν 6, caused by the large A-rotational constant: the central member of a Coriolis triad such as [2ν 5(A′), ν 5 + ν 6(A″), and 2ν 6(A′)] becomes so distorted that its rotational structure resembles that of an A′ level. Data from the B-type component of ν 1 have been used to derive a highly accurate set of effective ground state constants for K ≤ 7; these however contain various high-order centrifugal distortion terms because they do not explicitly consider the centrifugal distortion resonance that affects the very high K″ levels. © 1988.
Persistent Identifierhttp://hdl.handle.net/10722/147719
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.authorMerer, AJen_HK
dc.date.accessioned2012-05-29T06:08:53Z-
dc.date.available2012-05-29T06:08:53Z-
dc.date.issued1988en_HK
dc.identifier.citationJournal Of Molecular Spectroscopy, 1988, v. 127 n. 2, p. 509-526en_HK
dc.identifier.issn0022-2852en_HK
dc.identifier.urihttp://hdl.handle.net/10722/147719-
dc.description.abstractThe ν 1 fundamental (3339 cm -1) and the ν 2 + ν 4 combination band (3251 cm -1) in the infrared spectrum of NH 3 have been analyzed from high-resolution Fourier transform spectra. Extensive perturbations in ν 2 + ν 4 have been assigned to interactions with ν 2 + ν 5 + ν 6 (A″) on the basis of detailed intensity considerations: it is found that the matrix element between the two vibrational states is roughly proportional to K, which indicates an a-axis Coriolis mechanism. Although the ν 2 + ν 5 + ν 6 level has A″ symmetry it gives rise to an apparently normal A0type band (except for the absence of K = 0), where even the K = 1 asymmetry splitting is reversed so that it is in the sense expected for an A′ level. The reason for this reversal is shown to be the unusually strong Coriolis interaction between ν 5 and ν 6, caused by the large A-rotational constant: the central member of a Coriolis triad such as [2ν 5(A′), ν 5 + ν 6(A″), and 2ν 6(A′)] becomes so distorted that its rotational structure resembles that of an A′ level. Data from the B-type component of ν 1 have been used to derive a highly accurate set of effective ground state constants for K ≤ 7; these however contain various high-order centrifugal distortion terms because they do not explicitly consider the centrifugal distortion resonance that affects the very high K″ levels. © 1988.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 ν1 and ν2 + ν4 bands in the infrared spectrum of HN3en_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(88)90138-5-
dc.identifier.scopuseid_2-s2.0-0007417136en_HK
dc.identifier.volume127en_HK
dc.identifier.issue2en_HK
dc.identifier.spage509en_HK
dc.identifier.epage526en_HK
dc.identifier.isiWOS:A1988M023300018-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCheung, ASC=7401806538en_HK
dc.identifier.scopusauthoridMerer, AJ=6603864922en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats