Calixarenes. 5. Dynamic NMR characteristics of p-tert-butylcalix[4]-arene and p-tert-butylcalix[8]arene |
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| Authors: | C.David Gutsche Lorenz J. Bauer |
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| Affiliation: | Department of Chemistry, Washington University St Louis, Missouri 63130 USA |
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| Abstract: | The near identity of the temperature dependent 1H-NMR spectra of p-tert-butylcalix-[4]- and calix[8]arene in CDCl3 and bromobenzene-d5 is shown to be drastically altered in pyridine-d5, attributable to disruption of intramolecular hydrogen bonding. |
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