Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Adv Mater. 2019 Sep;31(39):e1902328. doi: 10.1002/adma.201902328. Epub 2019 Jul 19.
Cocrystal engineering with a noncovalent assembly feature by simple constituent units has inspired great interest and has emerged as an efficient and versatile route to construct functional materials, especially for the fabrication of novel and multifunctional materials, due to the collaborative strategy in the distinct constituent units. Meanwhile, the precise crystal architectures of organic cocrystals, with long-range order as well as free defects, offer the opportunity to unveil the structure-property and charge-transfer-property relationships, which are beneficial to provide some general rules in rational design and choice of functional materials. In this regard, an overview of organic cocrystals in terms of assembly, containing the intermolecular interactions and growth methods, two functionality-related factors including packing structure and charge-transfer nature, and those advanced and novel functionalities, is presented. An outlook of future research directions and challenges for organic cocrystal is also provided.
利用简单的组成单元进行非共价组装的共晶工程引起了极大的兴趣，并已成为构建功能材料的有效且通用的途径，特别是对于新型多功能材料的制造，这是由于在不同组成单元中的协作策略。同时，有机共晶的精确晶体结构具有长程有序和无缺陷，为揭示结构-性质和电荷转移性质关系提供了机会，这有利于在功能材料的合理设计和选择中提供一些一般规则。在这方面，本文从组装、包含分子间相互作用和生长方法、两个与功能相关的因素（包括堆积结构和电荷转移性质）以及那些先进和新颖的功能等方面对有机共晶进行了概述。还对有机共晶未来的研究方向和挑战进行了展望。
