Volume 203, 2017

Building new discrete supramolecular assemblies through the interaction of iso-tellurazole N-oxides with Lewis acids and bases

Abstract

The supramolecular macrocycles spontaneously assembled by iso-tellurazole N-oxides are stable towards Lewis bases as strong as N-heterocyclic carbenes (NHC) but readily react with Lewis acids such as BR3 (R = Ph, F). The electron acceptor ability of the tellurium atom is greatly enhanced in the resulting O-bonded adducts, which consequently enables binding to a variety of Lewis bases that includes acetonitrile, 4-dimethylaminopyridine, 4,4′-bipyridine, triphenyl phosphine, a N-heterocyclic carbene and a second molecule of iso-tellurazole N-oxide.

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Article information

Article type
Paper
Submitted
21 feb 2017
Accepted
07 apr 2017
First published
07 apr 2017

Faraday Discuss., 2017,203, 187-199

Building new discrete supramolecular assemblies through the interaction of iso-tellurazole N-oxides with Lewis acids and bases

P. C. Ho, H. A. Jenkins, J. F. Britten and I. Vargas-Baca, Faraday Discuss., 2017, 203, 187 DOI: 10.1039/C7FD00075H

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