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A Two‐Dimensional Polyrotaxane with Large Cavities and Channels: A Novel Approach to Metal–Organic Open‐Frameworks by Using Supramolecular Building Blocks
Author(s) -
Lee Eunsung,
Kim Jaheon,
Heo Jungseok,
Whang Dongmok,
Kim Kimoon
Publication year - 2001
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 - 10.1002/1521-3773(20010119)40:2<399::aid-anie399>3.0.co;2-w
Subject(s) - supramolecular chemistry , modular design , block (permutation group theory) , metal organic framework , ion exchange , computer science , porosity , copper , nanotechnology , key (lock) , reuse , materials science , chemistry , ion , molecule , engineering , organic chemistry , composite material , adsorption , geometry , mathematics , computer security , waste management , operating system
A seven‐membered molecular necklace composed of six copper ions and six pseudorotaxane units behaves as a secondary building block in the formation of a two‐dimensional polyrotaxane network with large voids (see picture). This novel metal–organic framework allows size‐selective anion exchange as well as the exchange of coordinated ligands. Thus a new synthetic strategy has been identified for modular porous solids which utilizes large, rigid, interlocked supermolecules as primary or secondary building blocks.