Title
Chiral Perylene Materials by Ionic Self-Assembly
Author
Geraldine Echue, Ian W Hamley, Guy C. Lloyd-Jones, Charl F.J. Faul
Year
2016
Journal
Langmuir
Abstract
Two chiral complexes (1-SDS, and 1-SDBS) were prepared via the ionic self-assembly of a chiral perylene diimide tecton with oppositely charged surfactants. The effect of surfactant tail architecture on the self-assembly properties and supramolecular structure was investigated in detail using UV-Vis, IR, circular dichroism, light microscopy, X-ray diffraction studies and electron microscopy. The results obtained revealed the molecular chirality of the parent perylene tecton could be translated into supramolecular helical chirality of the resulting complexes via primary ionic interactions through careful choice of solvent and concentration. Differing solvent-dependent aggregation behavior was observed for these complexes as a result of the different possible non-covalent interactions via the surfactant alkyl tails. The results presented in this study demonstrate that ionic self-assembly (ISA) is a facile strategy for the production of chiral supramolecularly ordered materials based on perylene diimides. The structure-function relationship is easily explored here owing to the wide selection and easy availability of common surfactants.
Instrument
J-815
Keywords
Circular dichroism, Stereochemistry, Materials