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Stoichiometry‐Controlled Inversion of Supramolecular Chirality in Nanostructures Co‐assembled with Bipyridines
Author(s) -
Wang Fang,
Feng ChuanLiang
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704431
Subject(s) - supramolecular chemistry , chirality (physics) , stacking , supramolecular chirality , intermolecular force , stoichiometry , nanostructure , molecule , hydrogen bond , nanotechnology , chemistry , materials science , crystallography , supramolecular assembly , chemical physics , organic chemistry , physics , chiral symmetry breaking , quantum mechanics , nambu–jona lasinio model , quark
To control supramolecular chirality of the co‐assembled nanostructures, one of the remaining issues is how stoichiometry of the different molecules involved in co‐assembly influence chiral transformation. Through co‐assembly of achiral 1,4‐bis(pyrid‐4‐yl)benzene and chiral phenylalanine‐glycine derivative hydrogelators, stoichiometry is found to be an effective tool for controlling supramolecular chirality inversion processes. This inversion is mainly mediated by a delicate balance between intermolecular hydrogen bonding interactions and π–π stacking of the two components, which may subtly change the stacking of the molecules, in turn, the self‐assembled nanostructures. This study exemplifies a simplistic way to invert the handedness of chiral nanostructures and provide fundamental understanding of the inherent principles of supramolecular chirality.