A Highly Crystalline Fluorene‐Based Porous Organic Framework with High Photoluminescence Quantum Yield

Abstract Using 4‐connected pyrene‐based building blocks with D 2h symmetry and 2‐connected fluorene‐based linker with C 2v symmetry, a 2D porous organic framework is obtained via imine condensation, PAF‐130. PAF‐130 has high crystallinity, permanent, and a high photoluminescence quantum yield, which is as high as 29.5% when dispersed in acetonitrile.