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Selective Host–Guest Interactions of a Transformable Coordination Capsule/Tube with Fullerenes
Author(s) -
Kishi Norifumi,
Akita Munetaka,
Yoshizawa Michito
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.201311251
Subject(s) - fullerene , bent molecular geometry , capsule , chemistry , tube (container) , metal , molecule , ligand (biochemistry) , crystallography , coordination complex , stereochemistry , materials science , organic chemistry , receptor , composite material , biochemistry , botany , biology
An M 2 L 4 coordination capsule or an M 2 L 2 coordination tube was selectively formed by the combination of Hg II hinges and bent bispyridine ligands. The two structures reversibly interconvert at room temperature in response to modulation of the metal‐to‐ligand ratio and exhibit different host–guest interaction behavior. The capsule alone encapsulates large spherical molecules, fullerenes C 60 and C 70 , and the bound guests are released upon capsule‐to‐tube transformation by the simple addition of metal ions.