Vibrational and Valence Photoelectron Spectroscopies, Matrix Photochemistry, and Conformational Studies of ClC(O)SSCl Yeny A. Tobón Melina V. Cozzarín Wei-Gang Wang Mao-Fa Ge Carlos O. Della Védova Rosana M. Romano 10.1021/jp204789h.s001 https://acs.figshare.com/articles/journal_contribution/Vibrational_and_Valence_Photoelectron_Spectroscopies_Matrix_Photochemistry_and_Conformational_Studies_of_ClC_O_SSCl/2614303 ClC(O)SSCl was prepared by an improved method by the reaction of [(CH<sub>3</sub>)<sub>2</sub>CHOC(S)]<sub>2</sub>S with SO<sub>2</sub>Cl<sub>2</sub> in hexane. The photoelectron spectra in the gas phase present four distinct regions, corresponding to ionizations from electrons formally located at the S, O, and Cl atoms and at the CO bond. The vibrational IR and Raman spectra of the liquid were interpreted in terms of the most stable syn–gauche conformer (the OC double bond syn with respect to the SS single bond and the CS single bond gauche with respect to the SCl single bond) in equilibrium with the less stable anti–gauche form, both occurring in two enantiomeric forms. The randomization process between the conformers was induced by broad-band UV–visible irradiation in matrix conditions, and several photoproducts were identified by FTIR spectroscopy. The experimental results were complemented by theoretical calculations. 2011-09-15 00:00:00 Cl atoms UV Valence Photoelectron Spectroscopies matrix conditions Conformational Studies vibrational IR FTIR spectroscopy enantiomeric forms CH bond syn photoelectron spectra conformer Raman spectra Matrix Photochemistry gas phase randomization process