Extended Data Fig. 6: Effects of temperature and cationic ions on crystallization of COF-301.

a, The effects of different acids on the yield and crystallinity of products (using the intensities of Bragg peaks). Optical microscopy images of COF-301 using C16-GlyA in water under 25 °C (b) and 75 °C (c). Optical microscopy images of COF-301 under LiOH (d) and KOH (e).