Directing coupled motion with light: a key step toward machine-like function

R Costil, M Holzheimer, S Crespi, NA Simeth… - Chemical …, 2021 - ACS Publications
Molecular photoactuators can control shape and chemical or physical properties of the
responsive system they are embedded in. These effects are usually mediated by …

Light‐driven chiral molecular switches or motors in liquid crystals

Y Wang, Q Li - Advanced Materials, 2012 - Wiley Online Library
The ability to tune molecular self‐organization with an external stimulus is a main driving
force in the bottom‐up nanofabrication of molecular devices. Light‐driven chiral molecular …

Reversible Handedness Inversion and Circularly Polarized Light Reflection Tuning in Self‐Organized Helical Superstructures Using Visible‐Light‐Driven Macrocyclic …

H Wang, Y Tang, H Krishna Bisoyi, Q Li - Angewandte Chemie, 2023 - Wiley Online Library
A series of macrocyclic azobenzene‐based chiral photoswitches have been judiciously
designed, synthesized, and characterized. In the molecular structures, binaphthyl is …

Reversible Quadruple Switching with Optical, Chiroptical, Helicity, and Macropattern in Self‐Assembled Spiropyran Gels

W Miao, S Wang, M Liu - Advanced Functional Materials, 2017 - Wiley Online Library
Enantiomeric glutamate gelators containing a spiropyran moiety are designed and found to
self‐assemble into a nanohelix through gelation. Upon alternating UV and visible light …

Azobenzene photoswitches for staudinger–bertozzi ligation

W Szymański, B Wu, C Poloni… - Angewandte Chemie …, 2013 - Wiley Online Library
Azobenzenes, which exist in the form of trans and cis isomers and can be isomerized by
irradiation with UV/Vis light, form one of the largest and most widely studied classes of …

Macrocycles containing azo groups: recognition, assembly and application

WC Geng, H Sun, DS Guo - Journal of Inclusion Phenomena and …, 2018 - Springer
Macrocyclic compounds play an important role in supramolecular chemistry accounting for
their unique recognition and self-assembly properties and potential applications in …

Helical chirality of azobenzenes induced by an intramolecular chiral axis and potential as chiroptical switches

K Takaishi, M Kawamoto, K Tsubaki… - Chemistry-A …, 2011 - okayama.elsevierpure.com
The cis and trans forms of the azobenzene skeleton differ significantly in length and
therefore are frequently used as photochromic parts for changing absorption and …

Reversible modulation of helicity in a binaphthyl–bipyridinium species and its cucurbit [8] uril complexes

C Gao, S Silvi, X Ma, H Tian, M Venturi… - Chemical …, 2012 - pubs.rsc.org
We describe a tweezer-like molecule constituted of two 4, 4′-bipyridinium arms connected
by means of alkyl spacers to a 1, 1′-binaphthyl unit acting as a hinge. In aqueous solution …

Photoinversion of Cisoid/Transoid Binaphthyls

K Takaishi, A Muranaka, M Kawamoto… - Organic letters, 2012 - ACS Publications
Axially chiral binaphthyl-azobenzene cyclic dyads in which the two moieties are connected
by two linkers of different lengths were synthesized. In the case of benzylated-binaphthyl …

Planar Chirality of Twisted trans-Azobenzene Structure Induced by Chiral Transfer from Binaphthyls

K Takaishi, A Muranaka, M Kawamoto… - The Journal of Organic …, 2011 - ACS Publications
The absolute configuration of a binaphthyl-azobenzene dyad 2b, which has a chiral axis and
a chiral plane, was determined by comparing the experimental circular dichroism (CD) …