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Thermodynamically Controlled Self‐Assembly of Pseudorotaxanes and Pseudopolyrotaxanes with Different Recognition Motifs Operating Self‐Selectively
Author(s) -
Ashton Peter R.,
Glink Peter T.,
MartínezDíaz M.Victoria,
Stoddart J. Fraser,
White Andrew J. P.,
Williams David J.
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199619301
Subject(s) - chemistry , self assembly , molecular recognition , cyclophane , polymer chemistry , stereochemistry , crystallography , molecule , organic chemistry , crystal structure
Three recognition sites —a bipyridinium unit and two secondary dibenzylammonium centers—within the tetracation 1 can be differentiated by two simple macrocyclic receptors, bis‐ para ‐phenylene[34]crown‐10 ( BPP34C10 ) and dibenzo[24]crown‐8 ( DB24C8 ). Strict self‐assembly processes under thermodynamic control yielded either [( DB24C8 ) 2 · BPP34C10·1 ] in a selective manner or the pseudopolyrotaxane [( BPP34C10 ) 2 · 1 ] n .