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Selective Encapsulation and Sequential Release of Guests Within a Self‐Sorting Mixture of Three Tetrahedral Cages
Author(s) -
Jiménez Azucena,
Bilbeisi Rana A.,
Ronson Tanya K.,
Zarra Salvatore,
Woodhead Craig,
Nitschke Jonathan R.
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201400541
Subject(s) - tetrahedron , diamine , chemistry , encapsulation (networking) , stereochemistry , crystallography , polymer chemistry , computer science , computer network
A mixture of two triamines, one diamine, 2‐formylpyridine and a Zn II salt was found to self‐sort, cleanly producing a mixture of three different tetrahedral cages. Each cage bound one of three guests selectively. These guests could be released in a specific sequence following the addition of 4‐methoxyaniline, which reacted with the cages, opening each in turn and releasing its guest. The system here described thus behaved in an organized way in three distinct contexts: cage formation, guest encapsulation, and guest release. Such behavior could be used in the context of a more complex system, where released guests serve as signals to other chemical actors.