Circularly Polarized Light-Driven Supramolecular Chirality

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Introduction of asymmetry into a supramolecular system via external chiral stimuli can contribute to the understanding of the intriguing homochirality found in nature. Circularly polarized light (CPL) is regarded as a chiral physical force with right- or left-handedness. It can induce and modulate supramolecular chirality due to preferential interaction with one enantiomer. Herein, this review focuses on the photon-to-matter chirality transfer mechanisms at the supramolecular level. Thus, asymmetric photochemical reactions are reviewed, and the creation of a chiral bias upon CPL irradiation is discussed. Furthermore, the possible mechanisms for the amplification and propagation of the bias into the supramolecular level are outlined based on the nature of the photochromic building block. Representative examples, including azobenzene derivatives, polydiacetylene, bicyclic ketone, polyfluorenes, C-n-symmetric molecules, and inorganic nanomaterials, are presented.
Publisher
WILEY-V C H VERLAG GMBH
Issue Date
2022-01
Language
English
Article Type
Review
Citation

MACROMOLECULAR RAPID COMMUNICATIONS, v.43, no.1

ISSN
1022-1336
DOI
10.1002/marc.202100649
URI
http://hdl.handle.net/10203/291789
Appears in Collection
CH-Journal Papers(저널논문)
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