open access

https://hdl.handle.net/2115/82509

Light-Driven Flipping of Azobenzene Assemblies-Sparse Crystal Structures and Responsive Behaviour to Polarised Light

英語

molecular machines

2020-08-21

Wiley-Blackwell

Chemistry-A European journal

26(47)

10759-10768

For creation of autonomous microrobots, which are able to move under conditions of a constant environment and a constant energy supply, a mechanism for maintenance of mechanical motion with a capacity for self-control is required. This requirement, known as self-organisation, represents the ability of a system to evade equilibrium through formation of a spatio-temporal pattern. Following our previous finding of a self-oscillatory flipping motion of an azobenzene-containing co-crystal, we present here regulation of the flipping motion by a light-receiving sensor molecule in relation to the alignment and role of azobenzene molecules in crystals. In the anisotropic structure, a specific azobenzene molecule acts as a reaction centre for the conversion of light to a mechanical function process, whereas the other molecules act as modulators for spatio-pattern regulation. The present results demonstrate that autonomously drivable molecular materials can exhibit information-responsive, self-sustainable motion by incorporating stimulus-responsive sensors.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: Y. Kageyama, T. Ikegami, S. Satonaga, K. Obara, H. Sato, S. Takeda, Chem. Eur. J. 2020, 26, 10759., which has been published in final form at https://doi.org/10.1002/chem.202000701. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

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