Abstract
Raman scattering and mass spectra of n-propanol and p-dioxane mixtures have been measured in order to study diluted effects on n-propanol. The results of both high frequency Raman spectra and mass spectra show the rapid decrease of clusters of hydrogen bonded molecules with decreasing n-propanol mole fractions ( x np). In the low frequency Raman spectra, line shapes were analyzed using the mode coupling theory. It is found that the minimum frequency of the imaginary part of dynamic susceptibility, ω min, becomes lower with decreasing x np. These concentration dependencies suggest a strong relation between the slow structural relaxation and the network structure of molecules in n-propanol.
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