赫克反应
极化率
烯烃纤维
共价键
三嗪
材料科学
共价有机骨架
带隙
联轴节(管道)
组合化学
高分子化学
化学
有机化学
钯
分子
光电子学
催化作用
复合材料
作者
Tingting Li,Mingyan Li,Jiawei Du,Jian Wang,Yinlin Song,Yuanbin She,Jianhong Jia
摘要
Abstract The covalent organic frameworks (COFs) with olefin linkages are attractive materials for nonlinear optics due to their small energy band gap and large π‐electron separation domain. In this paper, a post‐synthetic modification (PSM) by applying a heck coupling reaction on olefin‐linked COFs was applied for the first time to obtain five functionalized triazine‐based covalent organic framework materials. The synthesized materials were tested for their relevant photophysical and electrochemical properties, and their third‐order nonlinear optical properties were tested using the Z‐scan technique. The experimental results indicate that the post‐modified COF (W4‐2) exhibits third‐order nonlinear polarizability χ 3 that is 1.51 times higher than the unmodified COF (W4).
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