A Dielectric Relaxation Study of Some Liquid Dihydric Alcohols and Their Mixtures with Water

Dielectric Properties of 1-Hexanol in Mesitylene Solution on Admixture of Aromatic Dihydric Alcohols

“…In a r -rj plot, pure n-alkanols and dihydric alcohols appear as clearly separated "families" [29]. Figure 8 shows such a plot for the present systems.…”

“…The absorption curve e"(co) of concentrated alcoholic solutions and pure alcohols is often found to be formally describable by a Cole-Davidson (CD) function. Depending on the accessible frequency range, that fit may be improved by adding a further spectral com ponent on the high frequency side [29]. Just this procedure is suggested also for the present systems by the shape of spectra at higher concentrations (see for example the upper part of Figure 2).…”

“…In that connec tion also binary mixtures of dihydric and monohydric alcohols are of interest since, to a certain degree, dihy dric alcohols resemble water in their dielectric be haviour [29]. Some investigations of those systems have been reported previously [30][31][32][33].…”

“…Binary mixtures of water with alcohols have a t tracted special attention as one can hope to elucidate the effects of self and hetero-association and structure formation in those systems [21][22][23][24][25][26][27][28][29]. In that connec tion also binary mixtures of dihydric and monohydric alcohols are of interest since, to a certain degree, dihy dric alcohols resemble water in their dielectric be haviour [29].…”

Computer Simulation of a Simple Model for Rotational Moment Fluctuations in an Associating Liquid

“…Al cohols and water may be mentioned here as examples which have attracted interest since many years but nevertheless receive current attention [2]. Many more or less detailed suggestions have been discussed in order to explain the characteristics of their dielectric spectra in terms of hydrogen-bond dynamics [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. From a chemical point of view one may think of mod els which consider the equilibrium between "free" and "associated" species, emphasizing either the one par ticle [17][18][19] or cooperative [20,21] behaviour.…”