Effective density of vibrational states in H-bonded liquids was measured by Raman scatteringmethod. Actuality of a low-frequency\npart of the spectrum of the intermediate (fracton) region, which obeys a power law, indicates the correct application of the\npercolation model. The dependence of exponent on binary solutions concentration has been studied. Existence of correlation of\nthe fractal structure parameter and dynamic viscosity has been noted.
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