Summary
An analysis of Rayleigh-wing spectra on two isomers of propanol (C3H7OH) and on two of their Br-based isomorphous systems (C3H7Br) is presented. The performed measurements, over a wide temperature range, allow us to identify two different processes characterizing the response of both the alcohols. A comparison between the rotational dynamics of the linear normal-propanol (1-propanol) and the more sterically hindered iso-propanol (2-propanol) is performed. At the same time, the role played by the H-bond in the associative properties of hydrogenous systems is investigated by comparing the dynamical response of the two alcohols with that of 1-bromopropane and 2-bromopropane, in which the O−H «active» sites are replaced by «inert» bromine atoms.
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Crupi, V., Jannelli, M.P., Magazù, S. et al. Nature of depolarized quasi-elastic light scattering in associated and non-associated liquids. Il Nuovo Cimento D 16, 901–910 (1994). https://doi.org/10.1007/BF02456741
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DOI: https://doi.org/10.1007/BF02456741