Study of the High-Resolution Fourier Spectrum of the ν9 and ν2 + ν7 + ν8 Bands of the С2D4 Molecule

Fourier spectra of the C2D4 molecule in the region 2250–3040 cm–1, in which the fundamental ν9 band and the combinational ν2 + ν7 + ν8 band are located, are studied. The parameters of the effective Hamiltonian of the (v9 = 1) and (v2 = v7 = v8 = 1) states of the C2D4 molecule are determined based on the analysis of the experimental data.