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Distorted Arene Core Allows Room‐Temperature Columnar Liquid‐Crystal Glass with Minimal Side Chains
Author(s) -
Kelber Julien,
Achard MarieFrance,
Durola Fabien,
Bock Harald
Publication year - 2012
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.201108886
Subject(s) - side chain , core (optical fiber) , materials science , liquid crystal , crystallography , composite material , chemistry , polymer , optoelectronics
Atropoisomeric aromatic cores enhance disorder inside the supramolecular packing of disk‐shaped mesogens. Core‐extension of perylene with an atropoisomeric [4]helicene fragment thus gives rise to a room‐temperature liquid crystal even with extremely short side chains. Replacement of diester moieties by imide substituents allows switching from donor‐ to acceptor‐type electronic characteristics.