High resolution observation of microwave-optical double resonance in NO2

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DOIResolve DOI: http://doi.org/10.1063/1.1681127
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TypeArticle
Journal titleThe Journal of Chemical Physics
ISSN0021-9606
Volume60
Issue3
Pages11581166
Subjectelectron double resonance; vibrational states; vibration resonance; fluorescence spectra; ground states
AbstractA previously reported microwave-optical double resonance observed in the fluorescence of NO2 excited by the 4880 Å argon ion laser has been observed through a high resolution spectrograph. The common level in the double resonance is the 524 rotational level of a vibrational state of B 2 symmetry of the 2 B 2 electronic state of NO2. The optical transition exciting this level originates from the 431 level of the ground vibrational state of the 2 A 1ground electronic state of NO2. The most likely explanation of the double resonance is that the microwave transition is to the 523 level of another vibrational state of the 2 B 2 electronic state with A 1 vibrational symmetry. This level structure could be produced by an inversion splitting if the molecule had unequal N–O bond lengths in its equilibrium geometry or by an accidental near coincidence between vibrational levels of a symmetrical molecule.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NRC number13948
NPARC number21273729
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Record identifier096f6e33-bb08-49e0-a019-37dcd85c13df
Record created2015-01-20
Record modified2016-05-09
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