Pore surface engineering in covalent organic frameworks

被引:392
作者
Nagai, Atsushi [1 ]
Guo, Zhaoqi [1 ]
Feng, Xiao [1 ]
Jin, Shangbin [1 ]
Chen, Xiong [1 ]
Ding, Xuesong [1 ]
Jiang, Donglin [1 ,2 ]
机构
[1] Natl Inst Nat Sci, Dept Mat Mol Sci, Inst Mol Sci, Okazaki, Aichi 4448787, Japan
[2] Japan Sci & Technol Agcy JST, PRESTO, Chiyoda Ku, Tokyo 1020075, Japan
基金
日本科学技术振兴机构;
关键词
CRYSTALLINE; STORAGE; MICROPOROSITY; POLYMERS;
D O I
10.1038/ncomms1542
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Covalent organic frameworks (COFs) are a class of important porous materials that allow atomically precise integration of building blocks to achieve pre-designable pore size and geometry; however, pore surface engineering in COFs remains challenging. Here we introduce pore surface engineering to COF chemistry, which allows the controlled functionalization of COF pore walls with organic groups. This functionalization is made possible by the use of azide-appended building blocks for the synthesis of COFs with walls to which a designable content of azide units is anchored. The azide units can then undergo a quantitative click reaction with alkynes to produce pore surfaces with desired groups and preferred densities. The diversity of click reactions performed shows that the protocol is compatible with the development of various specific surfaces in COFs. Therefore, this methodology constitutes a step in the pore surface engineering of COFs to realize pre-designed compositions, components and functions.
引用
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页数:8
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