Covalent Organic Frameworks with trans -Dimensionally Vinylene-linked π -Conjugated Motifs
Chemical Research in Chinese Universities(2022)
Abstract
V inylene-linked covalent organic frameworks(COFs) are a class of promising porous organic materials that feature fully π -conjugated structures, high crystallinity, permanent porosity, ultrahigh chemical stability, and extraordinary optoelectronic properties. Over the past 5 years, this kind of material has been witnessed rapid development either in chemical synthesis or in potential applications. In this review, we summarize the chemistry to synthesize vinylene-linked COFs, especially the synthetic strategies involving activation of aryl methyl groups for condensation reaction. We then scrutinize the state-of-the-art development in properties and functions of this kind of COFs. Our own opinions on the further development of the vinylene-linked COFs are also presented for discussion.
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Key words
Covalent organic framework(COF),Vinylene linkage,Stability,π-Conjugated structure,Semiconducting property
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