Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science, Tianjin University Collaborative Innovation Canter of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China.
Key Laboratory of Organic Solids Institute of Chemistry, Chinese Academy of Science (ICCAS), Beijing, 100190, P. R. China.
Chempluschem. 2019 Sep;84(9):1245-1248. doi: 10.1002/cplu.201900197. Epub 2019 Jun 12.
A promising cocrystal material that acts as a rectifier was prepared by a simple procedure of solution volatilization. (E)-1,2-diphenylethene (STB) and 7,7',8,8'-tetracyanoquinodimethane (TCNQ) were used as donor and acceptor respectively, and aggregate in an ordered fashion in the stilbene-tetracyanoquinodimethane (STC) cocrystal that comprises 1 : 1 donor/acceptor mixed-stacked charge-transfer (CT) complexes. The strong CT interaction between the donor and acceptor is the main driving force for the self-assembly. The cocrystals show rectifying characteristics with a rectification ratio of 26. This result suggests that cocrystal engineering provides a great possibility to obtain rectifying materials from small, readily available organic molecules.
一种有望作为整流器的共晶材料是通过简单的溶液挥发程序制备的。（E）-1,2-二苯基乙烯（STB）和 7,7',8,8'-四氰基对醌二甲烷（TCNQ）分别作为给体和受体，在二苯乙烯-四氰基对醌二甲烷（STC）共晶中以有序的方式聚集，其中包含 1：1 的给体/受体混合堆积电荷转移（CT）配合物。供体和受体之间的强 CT 相互作用是自组装的主要驱动力。这些共晶表现出整流特性，整流比为 26。这一结果表明，共晶工程为从小型、易得的有机分子中获得整流材料提供了很大的可能性。
