Stoichiometry-Controlled Inversion of Supramolecular Chirality in Nanostructures Co-assembled with Bipyridines
| Autor: | Fang Wang, Chuan-Liang Feng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Supramolecular chirality
010405 organic chemistry Chemistry Hydrogen bond Organic Chemistry Intermolecular force Supramolecular chemistry Stacking General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Chemical physics Molecule Chirality (chemistry) Stoichiometry |
| Zdroj: | Chemistry (Weinheim an der Bergstrasse, Germany). 24(7) |
| ISSN: | 1521-3765 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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