The infrared absorption spectra of aqueous methanol, ethanol, 1- and 2-propanol, t-butanol, and n-butoxyethanol in the region of asymmetric and symmetric C–H stretching modes (3200–2800 cm−1) have been measured at 25 °C as a function of alcohol concentration in the whole cosolvent mole fraction region. Measurements of adiabatic compressibility were also performed on the same water–alcohol solutions at 25 °C. The two sets of experimental data are compared and discussed in terms of a possible mechanism of molecular aggregation in the various regions of alcohol concentration.
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D’Angelo et al. (1994) studied this question.
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