Induction and control of supramolecular chirality by light in self-assembled helical nanostructures

Evolution of supramolecular chirality from self-assembly of achiral compounds and control over its handedness is closely related to the evolution of life and development of supramolecular materials with desired handedness. Here we report a system where the entire process of induction, control and lo...

Full description

Saved in:
Bibliographic Details
Published in:Nature communications 2015-04, Vol.6 (1), p.6959, Article 6959
Main Authors: Kim, Jisung, Lee, Jinhee, Kim, Woo Young, Kim, Hyungjun, Lee, Sanghwa, Lee, Hee Chul, Lee, Yoon Sup, Seo, Myungeun, Kim, Sang Youl
Format: Article
Language:English
Subjects:
119/118
140/131
140/133
639/301/357/341
639/638/403
639/638/541
Aggregates
Handedness
Humanities and Social Sciences
Light
multidisciplinary
NMR
Nuclear magnetic resonance
Science
Science (multidisciplinary)
Solvents
Ultraviolet radiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Evolution of supramolecular chirality from self-assembly of achiral compounds and control over its handedness is closely related to the evolution of life and development of supramolecular materials with desired handedness. Here we report a system where the entire process of induction, control and locking of supramolecular chirality can be manipulated by light. Combination of triphenylamine and diacetylene moieties in the molecular structure allows photoinduced self-assembly of the molecule into helical aggregates in a chlorinated solvent by visible light and covalent fixation of the aggregate via photopolymerization by ultraviolet light, respectively. By using visible circularly polarized light, the supramolecular chirality of the resulting aggregates is selectively and reversibly controlled by its rotational direction, and the desired supramolecular chirality can be arrested by irradiation with ultraviolet circularly polarized light. This methodology opens a route to ward the formation of supramolecular chiral conducting nanostructures from the self-assembly of achiral molecules. There is significant interest in the evolution of supramolecular chirality via self-assembly of achiral building blocks. Here, the authors report a system where the supramolecular chirality can be selectively and reversibly controlled and arrested by visible and ultraviolet circularly polarized light.
ISSN:2041-1723
2041-1723
DOI:10.1038/ncomms7959