Fig. 4: Diffusion at different twist angles.
From: Why covalent organic frameworks grow twisted on graphite
Potential Energy Surface (PES) for the 12-pyr (left column), the 42-pyr (center column) and the 240-pyr (right column) PDBA 2D-COFs on graphene at the twist angles of 0 (top), 11 (center) and 18 (bottom) degrees. Note the progressive flattening of the energy ranges for 11 and 18 degrees.
