Artículos de revistas
Matrix Isolation of the Elusive Fluorocarbonylsulfenyl Fluoride Molecule FC(O)SF
Cozzarín, Melina Vanesa; Romano, Rosana Mariel; Willner, Helge; Della Vedova, Carlos Omar; Matrix Isolation of the Elusive Fluorocarbonylsulfenyl Fluoride Molecule FC(O)SF; American Chemical Society; Journal of Physical Chemistry A; 117; 5; 25-12-2012; 855-862
Cozzarín, Melina Vanesa
Romano, Rosana Mariel
Della Vedova, Carlos Omar
The syn and anti conformers of the hitherto unknown fluorocarbonylsulphenyl fluoride FC(O)SF were formed through the photochemical reactions between OCS and F2, isolated in solid Ar. The reactions were followed by Fourier transform infrared (FTIR) spectroscopy, and the unknown products were proposed by comparison of the observed IR absorptions with their computed IR spectra. The reactions occur through a 1:1 molecular complex between OCS and F2, forming the anti-FC(O)SF first, which subsequently transforms into the syn form, through a randomization process. At longer times of irradiation, FC(O)SF decomposes by extrusion of a CO molecule with the concomitant formation of SF2 and the formation of a difluorophosgene molecule, OCF2. The migration of fluorine atoms in the matrixes is proposed to explain the formation of SF4 and SF6.