High-resolution synchrotron infrared spectroscopy of thiophosgene: The \u3bd2 and \u3bd4 fundamental bands near 500 cm 121

Thiophosgene (Cl2CS) is a favorite model system for studies of photophysics, vibrational dynamics, and intersystem interaction effects. But there are no previous rotationally-resolved infrared studies because the spectra are very congested due to hot bands and multiple isotopic species. This paper reports a detailed study of the \u3bd2 (not, vert, similar504 cm 121) and \u3bd4 (not, vert, similar471 cm 121) fundamental bands for the two most abundant isotopomers, 35Cl2CS and 35Cl37ClCS, based on spectra with observed line widths of not, vert, similar0.0008 cm 121 obtained at the Canadian Light Source far-infrared beamline using synchrotron radiation and a Bruker IFS125 Fourier transform spectrometer.Peer reviewed: YesNRC publication: Ye