Spectroscopic Studies of the Interaction of Tert-Butylamine and n-Propylamine with the β-Cyclodextrin: Pyrene Complex
- 1 March 1993
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 47 (3) , 277-282
- https://doi.org/10.1366/0003702934066749
Abstract
The influence of amines on the aqueous beta-cyclodextrin ( β-CD): pyrene complex with the use of steady-state fluorescence measurements is examined. A 2:1 β-CD:pyrene complex is reported in the presence of either tert-butylamine (TBA) or n-propylamine (PA). At low amine concentrations, the role of the amine is to shield pyrene from the bulk aqueous phase. However, at higher TBA concentrations, there exists a competitive equilibrium between the amine and pyrene for the β-CD cavity. The formation constants for the various complexes in the presence of either amine were estimated to be of comparable order of magnitude.Keywords
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