Relaxation processes of the structural rearrangement of clusters in liquids: 1,2-ethanediol, 1,2-propanediol, and 1,2,6-hexanetriol |
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Authors: | T M Usacheva V I Zhuravlev N V Lifanova and V K Matveev |
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Abstract: | The dielectric relaxation spectra (DRS) of 1,2-ethanediol, 1,2-propanediol, and 1,2,6-gexanetriol are analyzed in terms of
the Dissado-Hill (DH) model in a wide range of temperatures, with all parameters required for calculating the cluster dipole
moments being determined within the DH molecular model itself. The dependence of the equilibrium and relaxation properties
of DRS on the hydrocarbon radical length and the number of OH groups is studied. The dipole moments of the clusters are calculated.
It is shown how the roles of the processes of intracluster rearrangement are redistributed due to the break of hydrogen bonds
and fluctuation processes of synchronous exchange of molecules between the clusters. |
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