Rotational dynamics and coupling of methyl group rotations in methyl fluoride studied by high resolution inelastic neutron scattering

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dc.contributor.authorKirstein, Oen_AU
dc.contributor.authorPrager, Men_AU
dc.contributor.authorSchneider, GJen_AU
dc.date.accessioned2009-07-07T06:10:55Zen_AU
dc.date.accessioned2010-04-30T05:04:24Zen_AU
dc.date.available2009-07-07T06:10:55Zen_AU
dc.date.available2010-04-30T05:04:24Zen_AU
dc.date.issued2009-06-07en_AU
dc.date.statistics2009-06-07en_AU
dc.description.abstractMethyl group rotations in methyl fluoride were studied using the high flux backscattering spectrometer SPHERES at FRM-II. The asymmetry and width of the low temperature tunneling peak was used to determine if coupled rotations between neighboring methyl fluoride molecules exist. The temperature dependent broadening of the tunneling peak was used to determine the first librational transition and compared to the temperature dependent shift of the position of the tunneling peak. The results obtained by using inelastic neutron scattering confirm previous models that assume rotational coupling. This is the first neutron backscattering experiment with sub-mu eV resolution at energy transfers up to 31 mu eV. © 2009, American Institute of Physicsen_AU
dc.identifier.articlenumber214508en_AU
dc.identifier.citationKirstein, O., Prager, M., & Schneider, G. J. (2009). Rotational dynamics and coupling of methyl group rotations in methyl fluoride studied by high resolution inelastic neutron scattering. Journal of Chemical Physics, 130(21), 5, 214508. doi:10.1063/1.3141384en_AU
dc.identifier.govdoc1285en_AU
dc.identifier.issn0021-9606en_AU
dc.identifier.issue21en_AU
dc.identifier.journaltitleJournal of Chemical Physicsen_AU
dc.identifier.pagination5en_AU
dc.identifier.urihttp://dx.doi.org/10.1063/1.3141384en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1474en_AU
dc.identifier.volume130en_AU
dc.language.isoenen_AU
dc.publisherAmerican Institute of Physicsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectOrganic compoundsen_AU
dc.subjectCrystal structureen_AU
dc.subjectMethyl fluorideen_AU
dc.subjectInelastic scatteringen_AU
dc.subjectSpectral shiften_AU
dc.titleRotational dynamics and coupling of methyl group rotations in methyl fluoride studied by high resolution inelastic neutron scatteringen_AU
dc.typeJournal Articleen_AU
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