A1 Journal article (refereed)
Helix Inversion Controlled by Molecular Motors in Multistate Liquid Crystals (2020)


Ryabchun, Alexander; Lancia, Federico; Chen, Jiawen; Morozov, Dmitry; Feringa, Ben L.; Katsonis, Nathalie (2020). Helix Inversion Controlled by Molecular Motors in Multistate Liquid Crystals. Advanced Materials, Early View. DOI: 10.1002/adma.202004420


JYU authors or editors


Publication details

All authors or editors: Ryabchun, Alexander; Lancia, Federico; Chen, Jiawen; Morozov, Dmitry; Feringa, Ben L.; Katsonis, Nathalie

Journal or series: Advanced Materials

ISSN: 0935-9648

eISSN: 1521-4095

Publication year: 2020

Volume: Early View

Publisher: Wiley-VCH Verlag

Publication country: Germany

Publication language: English

DOI: http://doi.org/10.1002/adma.202004420

Open Access: Open access publication published in a hybrid channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/72274


Abstract

Unravelling the rules of molecular motion is a contemporary challenge that promises to support the development of responsive materials and is likely to enhance the understanding of functional motion. Advances in integrating light‐driven molecular motors in soft matter have led to the design and realization of chiral nematic (cholesteric) liquid crystals that can respond to light with modification of their helical pitch, and also with helix inversion. Under illumination, these chiral liquid crystals convert from one helical geometry to another. Here, a series of light‐driven molecular motors that feature a rich configurational landscape is presented, specifically which involves three stable chiral states. The succession of chiral structures involved in the motor cycle is transmitted at higher structural levels, as the cholesteric liquid crystals that are formed can interconvert between helices of opposite handedness, reversibly. In these materials, the dynamic features of the motors are thus expressed at the near‐macroscopic, functional level, into addressable colors that can be used in advanced materials for tunable optics and photonics.


Keywords: crystals; molecules; photochemistry; nanotechnology

Free keywords: chirality; light‐responsive materials; liquid crystals; molecular motors


Contributing organizations


Related projects

Excitation energy transfer in chemical and biological systems
Morozov, Dmitry
Academy of Finland
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Ministry reporting: No, publication in press

Preliminary JUFO rating: 3


Last updated on 2020-21-10 at 08:22