Raman Scattering Spectra of Methane in Solid Rare Gases

抄録

Raman scattering spectra of ν₁ and ν₃ vibrational modes of methane have been observed for CH₄ and CD₄ in solid Kr, and for CH₄ in solid Xe. Fine structures due to the vibration-rotation states have been resolved in the spectrum of the ν₃ mode. The observed fine structures in the spectrum of CH₄ in Kr are examined to be in a good agreement with the theory of Kobashi, Kataoka and Yamamoto. The prominent doublet structures in this spectrum are due to the S-branch (ΔJ=2) type transitions from the lowest rotational state of the A-methane.