Abstract
The molecular structure of tricarbon oxide sulphide (3-thioxo-1,2-propadiene-1-one), has been determined by the substitution method using the rotational constants of five isotopic species. Since the lowest-lying bending modev 7 in C3OS is at 82.6 cm−1 the vibrational dependence of the molecular structure on this particular mode could be determined. By removing the vibrational dependence of the molecular structure onv 7 an effective equilibrium structure was obtained:
An interpretation of the pronounced vibrational dependence of the molecular structure on the excitation of the bending modev 7 is presented in the light of the stretch-bend interaction introduced by Bunker in the semi-rigid bender analysis of the quasilinear molecule carbon suboxide,
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Dedicated to Prof. I. Kovács on his 70th birthday
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Winnewisser, M., Walter Peau, E. The structure of tricarbon oxide sulfide, O=C=C=C=S, as a function of the vibrational quantum numberv 7, determined by the isotopic substitution method. Acta Physica Hungarica 55, 33–44 (1984). https://doi.org/10.1007/BF03155917
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DOI: https://doi.org/10.1007/BF03155917