CEQUINOR   05415
CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
artículos
Título:
Vibrational and Valence Photoelectron Spectroscopies, Matrix Photochemistry and Conformational Studies of ClC(O)SSCl
Autor/es:
YENY A. TOBÓN; MELINA V. COZZARÍN; WEI-GANG WANG; MAOFA GE; CARLOS O. DELLA VÉDOVA; ROSANA M. ROMANO
Revista:
JOURNAL OF PHYSICAL CHEMISTRY A
Editorial:
AMER CHEMICAL SOC
Referencias:
Año: 2011 vol. 115 p. 10203 - 10203
ISSN:
1089-5639
Resumen:
ClC(O)SSCl was prepared by an improved method by the reaction of [(CH3)2CHOC(S)]2S with SO2Cl2 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 CdO bond. The vibrational IR and Raman spectra of the liquid were interpreted in terms of the most stable syngauche conformer (the OdC 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 antigauche form, both occurring in two enantiomeric forms. The randomization process between the conformers was induced by broad-band UVvisible irradiation in matrix conditions, and several photoproducts were identified by FTIR spectroscopy. The experimental results were complemented by theoretical calculations.3)2CHOC(S)]2S with SO2Cl2 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 CdO bond. The vibrational IR and Raman spectra of the liquid were interpreted in terms of the most stable syngauche conformer (the OdC 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 antigauche form, both occurring in two enantiomeric forms. The randomization process between the conformers was induced by broad-band UVvisible irradiation in matrix conditions, and several photoproducts were identified by FTIR spectroscopy. The experimental results were complemented by theoretical calculations.
rds']