Infra-red spectra and ro-vibrational analysis of 18O12C32S

Abstract

Forty-two high resolution infra-red bands of ¹⁸O¹²C³²S have been measured. A least-squares analysis is performed on the observed vibrational energies and the rotational constants of that molecule which leads to a complete set of molecular parameters. The centrifugal distortion constants and the l-type doubling constants are also calculated and some predictions are presented. We also measured four bands of ¹⁸O¹³C³²S, three bands of ¹⁸O¹²C³⁴S and one band of ¹⁸O¹³C³⁴S.