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Dissipative and Autonomous Square-Wave Self-Oscillation of a Macroscopic Hybrid Self-Assembly under Continuous Light Irradiation

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/72714

Title: Dissipative and Autonomous Square-Wave Self-Oscillation of a Macroscopic Hybrid Self-Assembly under Continuous Light Irradiation
Authors: Ikegami, Tomonori Browse this author
Kageyama, Yoshiyuki Browse this author →KAKEN DB
Obara, Kazuma Browse this author
Takeda, Sadamu Browse this author
Keywords: cooperative effects
molecular devices
non-equilibrium processes
phase transitions
photochromism
Issue Date: 11-Jul-2016
Publisher: Wiley
Journal Title: Angewandte Chemie International Edition
Volume: 55
Issue: 29
Start Page: 8239
End Page: 8243
Publisher DOI: 10.1002/anie.201600218
PMID: 27194603
Abstract: Building a bottom‐up supramolecular system to perform continuously autonomous motions will pave the way for the next generation of biomimetic mechanical systems. In biological systems, hierarchical molecular synchronization underlies the generation of spatio‐temporal patterns with dissipative structures. However, it remains difficult to build such self‐organized working objects via artificial techniques. Herein, we show the first example of a square‐wave limit‐cycle self‐oscillatory motion of a noncovalent assembly of oleic acid and an azobenzene derivative. The assembly steadily flips under continuous blue‐light irradiation. Mechanical self‐oscillation is established by successively alternating photoisomerization processes and multi‐stable phase transitions. These results offer a fundamental strategy for creating a supramolecular motor that works progressively under the operation of molecule‐based machines.
Rights: This is the peer reviewed version of the following article: Dissipative and Autonomous Square-Wave Self-Oscillation of a Macroscopic Hybrid Self-Assembly under Continuous Light Irradiation, which has been published in final form at 10.1002/anie.201600218. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Type: article (author version)
URI: http://hdl.handle.net/2115/72714
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 景山 義之

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