LCOF stacking. We have chosen the two most common LCOF framework lattice types; namely honeycomb (hcb) (more correctly kagome (kgm), for simplicity we refer to the building block centers which form hcb lattices) represented by COF-1 and COF-5, and square (sql) lattices, represented by ZnPc-pz. These LCOFs have flat, atom-thin layers with only ZnPc-pz featuring bulky tert-butyl side groups reaching out of the layer plane (Figure ).