Vibrational relaxation of a polyatomic solute in a polyatomic supercritical fluid near the critical point

Urdahl, R. S.; Rector, K. D.; Myers, D. J.; Davis, P. H.; Fayer, M. D.
November 1996
Journal of Chemical Physics;11/15/1996, Vol. 105 Issue 19, p8973
Academic Journal
Vibrational lifetimes and absorption spectra of the asymmetric CO stretching mode (∼1990 cm-1) of W(CO)6 in supercritical CO2 are reported as functions of solvent density and temperature. Close to the critical temperature, the observables are density independent over a twofold range of density. Possible explanations are discussed for this unique behavior. © 1996 American Institute of Physics.


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