The stretching-bending bands of 13C2HD.

The infrared spectrum of 13C2 HD has been investigated using high-resolution Fourier transform infrared spectroscopy. A large number of ro-vibrational transitions in the spectral region 1000–6600 cm1 have been recorded and assigned. This paper is focused only on the vibrational bands involving pure stretching, stretching–bending or stretching–stretching modes. In total, 78 bands have been identified and assigned, 29 related to 1(CH stretch), 27 to 2(CC stretch), and 22 to 3(CD stretch). The data pertaining to each stretching mode have been fitted simultaneously in order to obtain accurate sets of rotational and vibrational parameters for the excited states.