Fig. 1: Synthesis and structures of COFs.

Schematic of the synthesis of DT2TA-TAPB, DT3TA-TAPB, DF2TA-TAPB, and DF3TA-TAPB and the corresponding S1 excited-state electron distributions (blue: electrons, green: holes).
Schematic of the synthesis of DT2TA-TAPB, DT3TA-TAPB, DF2TA-TAPB, and DF3TA-TAPB and the corresponding S1 excited-state electron distributions (blue: electrons, green: holes).