Fig. 2: Structure and crystallinity.
From: Green synthesis of olefin-linked covalent organic frameworks for hydrogen fuel cell applications

a Structure and synthesis of NKCOF-10. b PXRD patterns of NKCOF-10: experimental patterns (red), pawley-refined profile (black), the simulated pattern for eclipsed AA stacking mode (blue), and the refinement differences (pink). c Top and side views of the eclipsed AA-stacking model.