High-resolution stimulated Raman spectroscopy and analysis of the 2ν₁₀ overtone symmetric motion of C₂H₄

The high-resolution stimulated Raman spectrum of the 2ν₁₀ band located at 1664.16 cm^-1 of C₂H₄ has been reanalyzed, thanks to the tensorial formalism developed in Dijon for X₂Y₄ asymmetric-top molecules. A total of 191 lines were assigned and fitted as a single band without including perturbations such as Fermi or Coriolis coupling constants. We obtained a global root mean square deviation of 8.5 × 10^-3 cm^-1. Further investigations are required to include interactions with the ν₂ and ν₇ + ν₁₀ bands.