In:
Angewandte Chemie, Wiley, Vol. 130, No. 12 ( 2018-03-12), p. 3167-3171
Abstract:
Dynamic interconversion between large covalent organic cages was achieved simply by heating or acid/base treatment. A mixture of the boroxine cages 12‐mer and 15‐mer was cleanly converted into a pyridine adduct of the 9‐mer boroxine cage upon treatment with pyridine, and the geometry of N‐coordinated boron atoms changed from trigonal to tetrahedral. The reverse reaction was achieved by heating or acid treatment. In this process, the larger boroxine cages 12‐mer and 15‐mer were found to be entropically favored owing to the release of free pyridine molecules from 9‐mer ⋅6 Py.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v130.12
DOI:
10.1002/ange.201713221
Language:
English
Publisher:
Wiley
Publication Date:
2018
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514305-6
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505872-7
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1479266-7
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506259-7
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