Isoreticular 3D covalent organic frameworks with non-interpenetrated pcu-derived dia topology: pore regulation from micropores to mesopores

A novel strategy is presented for synthesizing isoreticular 3D COFs (JUC-300 to JUC-302) using high-coordinated building blocks as binodal tetrahedral nodes, enabling tunable pore sizes (1.6–5.2 nm) and a non-interpenetrated pcu -derived dia topology.