Research Abstract


Pore surface engineering in covalent organic frameworks

2011年11月15日 Nature Communications 2 : 536 doi: 10.1038/ncomms1542


永井 篤志1, Zhaoqi Guo1, Xiao Feng1, Shangbin Jin1,Xiong Chen1, Xuesong Ding1 & 江 東林1,2

  1. 自然科学研究機構 分子科学研究所
  2. 独立行政法人 科学技術振興機構 さきがけ
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.