Towards an understanding of the helium–acetylene van der Waals complex

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DOIResolve DOI: http://doi.org/10.1080/00268976.2012.699108
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TypeArticle
Journal titleMolecular Physics
ISSN0026-8976
1362-3028
Volume110
Issue21-22
Pages27432750; # of pages: 8
Subjecthelium, acetylene, dimer, spectroscopy, infrared, van der Waals
AbstractThe weakly bound complex He–C2D2 is studied in the ν 3 fundamental band of C2D2 (≈2440 cm−¹) using a tuneable infrared diode laser to probe a pulsed supersonic slit jet expansion. This is the first published spectrum for helium–acetylene. Transitions observed in the region of the C2D2 R(0) line are assigned with the help of theoretical results based on an ab initio intermolecular potential, and fitted using a simple Coriolis model. The results indicate that the complex is rather close to the free rotor limit, helping to explain the absence of previous data. Scaled parameters from the model are used to predict a spectrum for He–C2H2.
Publication date
LanguageEnglish
AffiliationSecurity and Disruptive Technologies; National Research Council Canada
Peer reviewedYes
NPARC number21269092
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Record identifierb0f849a8-6632-4493-b96e-3f2a10f3faf1
Record created2013-12-05
Record modified2016-05-09
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