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A Polymer Guest Transforms Clathrate Cages into Channels: The Single‐Crystal X‐Ray Structure of Tetra‐ n‐ butylammonium Polyacrylate Hydrate, n Bu 4 NPA⋅40 H 2 O
Author(s) -
Udachin Konstantin A.,
Ripmeester John A.
Publication year - 1999
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/(sici)1521-3773(19990712)38:13/14<1983::aid-anie1983>3.0.co;2-j
Subject(s) - clathrate hydrate , hydrate , tetra , molecule , chemistry , crystallography , polyacrylic acid , stacking , crystal structure , polymer , organic chemistry , medicinal chemistry
The stacking of hydrate cages into channels is effected by the incorporation of polyacrylic acid together with tetra‐ n ‐butylammonium hydroxide into a hydrate lattice. The polymer chain (shown in the diagram as large circles) lies in the channel in such a way that some of the carboxy groups displace water molecules from the clathrate framework. The remaining carboxy groups are included in the channel as hydrophobic units without strong directional interactions with the water molecules found there.