抄録
It is known that fluorinated methanes CH3F (HFC-41), CH2F2 (HFC-32), CHF3 (HFC-23), CF4 (FC-14) and CHF2Cl (HCFC-22) have considerably more importance to mankind, which have been suggested as the potential replacements for chlorofluorocarbons (CFCs). This article reviews recent high-pressure Raman studies of CH3F, CH2F2, CHF3, CF4 and CHF2Cl, and high-pressure FT-IR study of CH2F2. The pressure-induced phase transitions, the pressure dependence of molecular vibrations, the mode-Grüneisen parameters and the other characteristic behavior of these condensed molecules have been presented and discussed.
