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Solubilization of Aromatic Hydrocarbons in Aqueous  β-Cyclodextrin Solutions in the Presence of Bis(4-tert-butylphenoxy) Substituted Ammonium Salt

K. Kráľová and Ľ. Mitterhauszerová

Institute of Chemistry, Faculty of Natural Sciences, Comenius University, CS-842 15 Bratislava


Abstract: The solubilization of phenanthrene and fluorene in aqueous β-cyclodextrin (CD) solutions in the presence of 1,4-bis[4-(4-tert-butylphenoxy)butyl]-1,4-diazoniabicyclo[2.2.2]octane dibromide (BuDBDiBr) at the constant ratio n(CD) : n(surfactant) = 2 : 1 is completely suppressed. However, the solubilization of pyrene, acenaphthylene, acenaphthene in these systems remarkably increases. It can be assumed that inclusion complexes of CD with the surfactant containing in the side chains 4-tert-butylphenoxy group form associates which are able to solubilize aromatic hydrocarbons of suitable structure with high efficiency. The highest increase of the solubilized amount in the systems CD-BuDBDiBr (the mole ratio 2 : 1) was obtained with pyrene.

Full paper in Portable Document Format: 474a243.pdf


Chemical Papers 47 (4) 243–246 (1993)

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