ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
The viscosity and self-diffusion coefficients of C60 in the gas phase are reported, based upon a first-principles interaction potential. It is found that these transport coefficients increase monotonically with increasing temperature, but the calculated collision integrals, which are closely related to the transport coefficients, do not decrease monotonically with increasing temperature and exhibit a number of plateaus or the oscillating behavior. It is completely different from those of inert gases. This phenomenon should be ascribed to the interaction potential between C60 molecules. We confirm that the potential employed here does not behave like a Lennard-Jones (LJ) potential or Tang–Toennies (TT) potential and in turn a LJ-type or TT-type potential cannot describe exactly the interaction between C60 molecules. © 1999 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.478831
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