Two reorientational relaxation processes have been suggested to occur in liquid water. However, while there is general agreement on the value of the slow Debye relaxation time constant, a question arises on the effective time scale of the fast relaxation process, that has been reported to occur in the 0.2-1 ps range at room temperature. It is shown here that, the combined analysis of the available microwave and far-infrared dielectric spectroscopy literature data, suggests the existence of three relaxation processes in H2O(l). Such interpretation is consistent with the most recent literature on the rotational dynamics of such liquid. © 2007 Elsevier B.V. All rights reserved.

Which is the effective time scale of the fast Debye relaxation process in water?

Beneduci, A.
2008-01-01

Abstract

Two reorientational relaxation processes have been suggested to occur in liquid water. However, while there is general agreement on the value of the slow Debye relaxation time constant, a question arises on the effective time scale of the fast relaxation process, that has been reported to occur in the 0.2-1 ps range at room temperature. It is shown here that, the combined analysis of the available microwave and far-infrared dielectric spectroscopy literature data, suggests the existence of three relaxation processes in H2O(l). Such interpretation is consistent with the most recent literature on the rotational dynamics of such liquid. © 2007 Elsevier B.V. All rights reserved.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/271855
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