An NMR Study on Complexation of p-tert-Butylcalix[6]arene Ester Derivatives with Ethylammonium Picrate
- 1 April 1995
- journal article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 24 (4) , 297-298
- https://doi.org/10.1246/cl.1995.297
Abstract
Complexation of p-tert-butylcalix[6]arene ester derivatives with ethylammonium ion was investigated via measurement of their proton relaxation times and chemical shifts in CDCl3. The results suggest that the endo-type complexes are formed and the overall rotation of these complexes is more rapid than that of the corresponding free hosts.Keywords
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