芳烯
共价键
羟醛缩合
材料科学
聚合物
多孔性
冷凝
共价有机骨架
高分子化学
量子产额
亚苯基
化学工程
化学
催化作用
有机化学
复合材料
工程类
物理
热力学
荧光
量子力学
烷基
芳基
作者
Thaksen Jadhav,Yuan Fang,W. J. Patterson,Chenghao Liu,Ehsan Hamzehpoor,Dmitrii F. Perepichka
标识
DOI:10.1002/anie.201906976
摘要
Abstract Designing structural order in electronically active organic solids remains a great challenge in the field of materials chemistry. Now, 2D poly(arylene vinylene)s prepared as highly crystalline covalent organic frameworks (COFs) by base‐catalyzed aldol condensation of trimethyltriazine with aromatic dialdehydes are reported. The synthesized polymers are highly emissive (quantum yield of up to 50 %), as commonly observed in their 1D analogues poly(phenylene vinylene)s. The inherent well‐defined porosity (surface area ca. 1000 m 2 g −1 , pore diameter ca. 11 Å for the terephthaldehyde derived COF‐1) and 2D structure of these COFs also present a new set of properties and are likely responsible for the emission color, which is sensitive to the environment. COF‐1 is highly hydrophilic and reveals a dramatic macroscopic structural reorganization that has not been previously observed in framework materials.
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