Raman Spectroscopic Studies on SO2F2 in Argon Matrices

The vibrational fine structure of SO2F2 has been studied in the solid (80 and 15 K), liquid, and gaseous state and in argon matrices (M/S = 30, 100, 300, and 1000) by Raman spectroscopy. Furthermore, the change of the vibrational structure during the phase transition (phase I/phase II) of solid SO2F2 at 65.7 K was observed by temperature-dependent measurements. The Raman frequencies of SO2F2 free of crystal field splitting and molecular rotation were obtained from Raman matrix spectra. The influence of dilution on the matrix-isolated molecules and annealing procedures on the argon matrices with respect to the formation of van der Waals oligomers and matrix effects are discussed. Copyright 1998 Academic Press.