title: Chiral Assemblies from an Achiral Pyridinium-Tailored Anthracene.
abstract: Chiral helical structures have attracted increasing attention in the field of supramolecular assembly because of their critical roles in life and material sciences. In this research, the achiral amphiphile 1-[11-(2-anthracenylmethoxy)-11-oxoundecyl]pyridinium bromide (2-APB), in which the hydrophobic anthracene and the hydrophilic pyridinium units are linked by alkyl chains, was found to form chiral supramolecular assemblies in a cooperative manner in the presence of iodide anion. Moreover, these assemblies show left (L)- or right (R)-handedness randomly, independent of the assembly conditions. By using the same method, 2-APB could assemble together with other pseudo-halogen anions (OCN-, SCN-, SeCN-) that have similar anionic radius as iodide to form chiral structures. This work illustrates a simple and rational design that can be used to fabricate supramolecular chiral structures from achiral molecules.
authors.affiliation: State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Hu
authors.affiliation: State Key Laboratory of Breeding Base of Green Pesticide and Agricultural Bioengineering, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, 550025, P. R. China.
authors.forename: Lei
authors.initials: L
authors.lastname: Gao
authors.affiliation: State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
authors.forename: Youliang
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Breeding Base of Green Pesticide and Agricultural Bioengineering, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, 550025, P. R. China.
authors.forename: Peiyi
authors.initials: P
authors.lastname: Wang
authors.affiliation: State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Lin
authors.affiliation: State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
authors.forename: Zhaoyan
authors.initials: Z
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Breeding Base of Green Pesticide and Agricultural Bioengineering, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, 550025, P. R. China.
authors.forename: Song
authors.initials: S
authors.lastname: Yang
authors.affiliation: State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.|Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, USA.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
keywords: chirality; helical structures; nanostructures; self-assembly; supramolecular chemistry