Donor-acceptor type [4+3] covalent organic frameworks: sub-stoichiometric synthesis and photocatalytic application

被引：0
|
作者：
Liao, Qiaobo [1 ]
Xu, Wentao [1 ]
Huang, Xin [1 ]
Ke, Can [1 ]
Zhang, Qi [1 ]
Xi, Kai [1 ]
Xie, Jin [1 ]
机构：
[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Jiangsu Key Lab Adv Organ Mat, Nanjing 210023, Peoples R China
来源：
SCIENCE CHINA-CHEMISTRY | 2020年 / 63卷 / 05期
关键词：
COF; sub-stoichiometric synthesis; crystal engineering; photocatalysis; aerobic oxidation; SP(3) C-H; 3 DIFFERENT KINDS; METAL-FREE; CONSTRUCTION; EFFICIENT; CATALYSIS; PORES; BONDS; FUNCTIONALIZATION; CRYSTALLINITY;
D O I：
10.1007/s11426-019-9696-3
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Three unprecedented 2D [4+3] covalent organic frameworks (TTCOF-1, TTCOF-2, and TTCOF-3) have been prepared by substoichiometric condensation of tetratopic and tritopic monomers, overcoming the limitations of the design rules of conventional topologies. By reticulating the tetraphenylethylene (TPE)-based and triazine-based moieties into COF frameworks, novel electron donor-acceptor (D-A) type structures were obtained. These TTCOFs have good photocatalytic activity in aerobic C(sp(3))-H bond functionalization and arylboronic acid oxidation driven by visible light, with yields up to 94%. This can expedite possibilities of COFs with new structural and topological complexities and can also expand the application of COF-based photocatalysis in synthetic chemistry.
引用
收藏
页码：707 / 714
页数：8
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