Nitrous oxide dimer : observation of a new polar isomer

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DOIResolve DOI: http://doi.org/10.1063/1.2730806
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TypeArticle
Journal titleThe Journal Of Chemical Physics
Volume126
Issue16
Pages164310-1164314-5; # of pages: 5
Subjectab initio calculations; bond lengths; infrared spectra; isomerism; nitrogen compounds; potential energy surfaces; rotational states
AbstractSpectra of the nitrous oxide dimer (N2O)2 are studied in the region of the N2O nu1 fundamental band around 2230 cm?1 using a rapid-scan tunable diode laser spectrometer to probe a pulsed supersonic jet expansion. The previously known band of the centrosymmetric nonpolar dimer is analyzed in improved detail, and a new band is observed and assigned to a polar isomer of (N2O)2. This polar form of the dimer has a slipped parallel structure, rather similar to the slipped antiparallel structure of the nonpolar form but with a slightly larger intermolecular distance. The accurate rotational parameters determined here should enable a microwave observation of the polar N2O dimer. The need for a modern ab initio investigation of the N2O�N2O intermolecular potential energy surface is emphasized.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NPARC number12338499
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Record identifier79782621-dd01-4e5f-8bb4-f6f608543145
Record created2009-09-10
Record modified2017-03-23
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