| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5223107 | Tetrahedron | 2009 | 5 Pages |
Abstract
The stability constants (K), standard free energy (ÎGo), enthalpy (ÎHo), and entropy changes (ÎSo) for the complexation of pyrogallol[4]arenes with ammonium cations of different size and shape have been determined in ethanol at 298Â K by isothermal titration calorimetry. The trends observed in the thermodynamic parameters for 1:1 and/or 1:2 host-guest complexation correspond to the systematic structural changes of the guest molecules. On the basis of the results obtained we compare the complexation properties with two other resorcin[4]arenes and discuss the thermodynamic aspects of this supramolecular host-guest interactions.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
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Authors
Bjoern Schnatwinkel, Mikhail V. Rekharsky, Ralf Brodbeck, Victor V. Borovkov, Yoshihisa Inoue, Jochen Mattay,