Abstract
This study examined the effects of pentanoic acid as a guest molecule on the inclusion complex formation with β-cyclodextrin (β-CD). Ultrasonic absorption measurements were carried out for β-CD solutions with pentanoic acid over the frequency range from 0.2 to 45 MHz. A single relaxational absorption resulting from the perturbation of chemical equilibrium was observed for the inclusion of pentanoic acid into the β-CD cavity. The undissociated form of pentanoic acid produced a more stable complex with β-CD than its dissociated form. An ultrasonic relaxation associated with a protontransfer reaction was also observed when no additive was present in the solution.
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Bae, JR. Study of the dynamic complex formation of pentanoic acid with β-cyclodextrin by using an ultrasonic relaxation method. Journal of the Korean Physical Society 63, 193–198 (2013). https://doi.org/10.3938/jkps.63.193
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DOI: https://doi.org/10.3938/jkps.63.193