Abstract High accurate,~ 1× 10− 4 cm− 1, ro-vibrational spectra of the C 2 13 H 4 molecule
in the region of 600–1600 cm− 1 were recorded with Bruker IFS 120/125 HR Fourier
transform interferometers and analyzed in the Hamiltonian model which takes into account
Coriolis resonance interactions between all four bands. More than 660, 3870, 2420, and
2550 transitions belonging to the ν 4, ν 7, ν 10, and ν 12 bands were assigned in the
experimental spectrum with the maximum values of quantum numbers J max./K a max …