fig5
![Molecular engineering toward large pore-sized covalent organic frameworks](https://image.oaes.cc/fb361da7-32a2-4393-ae05-1da30b195551/cs3063.fig.5.jpg)
Figure 5. Synthesis routes of dPP-TAB COF and dPP-TAPB COF. (i) Mesitylene/1,4-Dioxane = 7/3 (v/v), HAc (12 M), 120 °C and 3 days; (ii) Mesitylene/1,4-Dioxane = 3/1 (v/v), HAc (6 M), 120 °C and 3 days. TAPB: 1,3,5-tris(4-aminophenyl) benzene; COF: covalent organic framework.