title: Calculation of the transport properties of carbon dioxide. III. Volume viscosity, depolarized Rayleigh scattering, and nuclear spin relaxation.
abstract: Transport properties of pure carbon dioxide have been calculated from the intermolecular potential using the classical trajectory method. Results are reported in the dilute-gas limit for volume viscosity, depolarized Rayleigh scattering, and nuclear spin relaxation for temperatures ranging from 200 to 1000 K. Three recent carbon dioxide potential energy hypersurfaces have been investigated. Calculated values for the rotational collision number for all three intermolecular surfaces are consistent with the measurements and indicate that the temperature dependence of the Brau-Jonkman correlation is not applicable for carbon dioxide. The results for the depolarized Rayleigh scattering cross section and the nuclear spin relaxation cross section show that calculated values for the generally more successful potentials differ from the observations by 9% at about 290 K, although agreement is obtained for nuclear spin relaxation at about 400 K.
authors.affiliation: Fachbereich Chemie, Universitat Rostock, D-18059 Rostock, Germany.
authors.forename: Steffen
authors.initials: S
authors.lastname: Bock
authors.forename: Eckard
authors.initials: E
authors.lastname: Bich
authors.forename: Eckhard
authors.initials: E
authors.lastname: Vogel
authors.forename: Alan S
authors.initials: AS
authors.lastname: Dickinson
authors.forename: Velisa
authors.initials: V
authors.lastname: Vesovic