Directing Coupled Motion with Light: A Key Step Toward Machine-Like Function,Chemical Reviews

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Directing Coupled Motion with Light: A Key Step Toward Machine-Like Function
Chemical Reviews ( IF 51.4 ) Pub Date : 2021-09-17 , DOI: 10.1021/acs.chemrev.1c00340
Romain Costil ₁ , Mira Holzheimer ₁ , Stefano Crespi ₁ , Nadja A Simeth ₁ , Ben L Feringa ₁

Affiliation

Molecular photoactuators can control shape and chemical or physical properties of the responsive system they are embedded in. These effects are usually mediated by supramolecular interactions and can be amplified to perform work at the micro- and macroscopic scale, for instance, in materials and biomimetic systems. While many studies focus on the observable outcome of these events, photoresponsive structures can also translate their conformational change to molecular components and perform work against random Brownian motion. Stereochemical cascades can amplify light-generated motion to a distant moiety of the same molecule or molecular assembly, via conformationally restricted stereogenic elements. Being able to control the conformation or motion of molecular systems remotely provides prospects for the design of the smallest machines imaginable. This Focus Review emphasizes the emergence of directed, coupled motion of remote functionalities triggered by light-powered switches and motors as a tool to control molecular topology and function.

中文翻译：

用光引导耦合运动：迈向类机器功能的关键一步

分子光致动器可以控制它们所嵌入的响应系统的形状和化学或物理特性。这些效应通常由超分子相互作用介导，并且可以放大以在微观和宏观尺度上执行工作，例如在材料和仿生系统中。虽然许多研究关注这些事件的可观察结果，但光响应结构也可以将其构象变化转化为分子成分，并对抗随机布朗运动。立体化学级联可以通过构象限制的立体元件，将光产生的运动放大到同一分子或分子组装体的远处部分。能够远程控制分子系统的构象或运动为设计可以想象的最小机器提供了前景。本焦点评论强调了由光驱动开关和电机触发的远程功能的定向耦合运动的出现，作为控制分子拓扑和功能的工具。

更新日期：2021-11-10

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