Infrared spectra of monomeric thioformaldehyde in Ar, N2 and Xe matrices

Pyrolysis products of 1,3-dithietane were trapped in low-temperature matrices and their infrared spectra were recorded. The vibrational bands of monomeric H2CS, which was not perturbed by other decomposition products, were identified in Ar, N2 and Xe matrices. These results will be useful to evaluate the frequency shifts of H2CS induced by the interaction with other molecules.