Hydrazones as New Molecular Tools
Hydrazones as New Molecular Tools
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DOI：
10.1016/j.chempr.2020.08.007
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发表时间：
2020-09-10
期刊：
影响因子：
23.5
通讯作者：
Aprahamian, Ivan
中科院分区：
文献类型：
--
作者：
Shao, Baihao;Aprahamian, Ivan
具有增强性能和全新功能的新型分子开关的开发使从业者能够推动自适应和仿生材料的前沿。过去十年见证了光活化和化学活化腙作为新分子工具的出现，可用于解决分子开关和机器领域面临的许多挑战。从这个角度来看，我们将回顾这些交换机的演变，并强调它们带来的独特的动态和/或自适应功能，从而获得前所未有的机会。我们专注于由化学激活开关驱动的反应级联，并展示如何使用动态分子间通信来推进系统化学方法来解决该领域的挑战。对于光化学激活的腙，其双稳态使得聚合物能够实现多态驱动以及液晶不同自组装体的动力学捕获，从而产生涌现现象。
The development of new classes of molecular switches with enhanced performance and brand-new functionalities enables practitioners to push the frontiers of adaptive and biomimetic materials. The past decade has witnessed the emergence of photo- and chemically activated hydrazones as new molecular tools that can be used in addressing many of the challenges facing the field of molecular switches and machines. In this perspective, we walk through the evolution of these switches and highlight the unique dynamic and/or adaptive capabilities that they bring forth, allowing access to unprecedented opportunities. We focus on reaction cascades driven by the chemically activated switches and show how dynamic intermolecular communication can be used in advancing a systems chemistry approach to solving challenges in the field. As for photo-chemically activated hydrazones, their bistability enables the multistate actuation of polymers as well as the kinetic trapping of different self-assemblies of liquid crystals, resulting in an emergent phenomenon.