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Self‐assembling synthetic supramolecular polymers
Author(s) -
Ashton Peter R.,
Philp Douglas,
Spencer Neil,
Stoddart J. Fraser
Publication year - 1992
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19920540133
Subject(s) - supramolecular chemistry , stacking , catenane , molecule , crystallography , polymer , ether , covalent bond , chemistry , supramolecular polymers , materials science , stereochemistry , polymer chemistry , organic chemistry
The solid state structure of a [2]catenane, composed of macrocyclic rings containing π‐electron rich hydroquinol rings and π‐electron deficient bipyridinium units has revealed an approach to the elaboration of supramolecular polymers with a double helical tertiary structure. Neutral molecules containing up to five hydroquinol rings, separated by trioxaundecane spacers and terminated by benzyl ether functions, have been shown by 1 H NMR spectroscopy to form superstructures with possible double helical character as a result of π‐π stacking and other non‐covalent bonding interactions with polycations containing up to four bipyridinium units separated by p ‐xylyl spacers and terminated also by benzyl functions.