Now, writing in the Journal of the American Chemical Society, Gang Wu, Hong Xia, Xiaoming Liu and co-workers report the synthesis of two three-component donor−π−acceptor (TCDA)-COFs and their application in the photocatalytic production of hydrogen from water. The highly crystalline TCDA-COFs share two common components; an electron-rich benzotrithiophene donor, benzo[1,2-b:3,4-b′:5,6-b″]trithiophene-2,5,8-tricarbaldehyde (BTT), and an electron-poor triazine acceptor, 1,3,5-tris-(4-formyl-phenyl)triazine (TFPT), but differ with respect to the linker used, 1,4-phenyldiacetonitrile or 1,4-phenylenediamine (PDA). These linkers allow the two TCDA-COFs, COF-JLU35 and COF-JLU36, to be synthesized through Knoevenagel and Schiff-base condensation reactions, respectively.

现在，吴刚、夏红、刘晓明及其同事在美国化学学会杂志上撰文报道了两种三组分供体-π-受体 (TCDA)-COF 的合成及其在光催化生产来自水的氢气。高度结晶的 TCDA-COF 有两个共同的组成部分：一个富电子的苯并三噻吩供体，苯并[1,2-b:3,4-b':5,6-b”]三噻吩-2,5,8-三甲醛（BTT），和一个缺电子的三嗪受体， 1,3,5-三-(4-甲酰基-苯基)三嗪 (TFPT)，但在使用的接头方面有所不同，1,4-苯基二乙腈或 1,4-苯二胺 (PDA)。这些接头允许两个 TCDA-COF，COF-JLU35 和 COF-JLU36，分别通过 Knoevenagel 和席夫碱缩合反应合成。