Absorption spectrum and analysis of the ND4 Schüler band

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DOIResolve DOI: http://doi.org/10.1016/0022-2852(84)90272-8
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TypeArticle
Journal titleJournal of Molecular Spectroscopy
ISSN0022-2852
Volume107
Issue1
Pages133143; # of pages: 11
AbstractA high-resolution absorption spectrum of the main Schüler band of ND4, with heads at 6746 and 6749 Å (ν00 = 14828 cm−1), has been obtained by the flash discharge method, using mixtures of ND3 and D2. The spectrum confirms and extends the recent observation of ND4 absorption in laser frequency modulation spectroscopy by Hunziker and co-workers. The detailed rotational analysis establishes the electronic assignment as 3p2F2 ← 3s2A1, and results in molecular constants in moderate agreement with expectations based on ab initio calculations. The 30-μsec lifetime of the 3s2A1 ground state of ND4 is consistent with the 20-μsec lower limit estimated by Porter and co-workers on the basis of neutralized-ion-beam spectroscopy.
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LanguageEnglish
AffiliationNRC Herzberg Institute of Astrophysics; National Research Council Canada
Peer reviewedYes
NRC number23611
NPARC number21275098
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Record identifier6d2d5424-4496-4883-a4e2-104adc67579a
Record created2015-05-07
Record modified2016-05-09
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