Diffusion / High Pressure / Isotope Effects / Liquids / Spectroscopy, Nuclear Magnetic ResonanceThe p , T-dependence of the self diffusion coefficients D for ethanol-OD, 1-and 2-propanol-OH and -OD have been studied in a wide temperature range at pressures up to 200MPa. The experiments were performed in strengthened high pressure glass cells by the pulsed field gradient NMR-technique. The isobaric temperature dependence of D is given by the VTF-equation. The isotherms can be fitted to the rough hard sphere model with an A-parameter that decreases strongly with falling temperature.

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