Title

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

Document Type

Article

Publication Date

6-22-2009

Abstract

Methyl 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- μeV resolution at energy transfers up to 31 μeV. © 2009 American Institute of Physics.

Publication Source (Journal or Book title)

Journal of Chemical Physics

This document is currently not available here.

Share

COinS