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Figure 8
(a) AFM image of the OZPN form I (100) face after 15 and 195 min at 50% RH, (b) epitaxial growth of dihydrate D crystals on the (100) face of form I in water, (c) AFM image showing incipient evolution of surface features on the (100) face of form I in water, and (d) mechanistic view of the two-step nucleation of OZPN dihydrates D and B on and off the (100) surface of form I, respectively. Adapted from the work by Warzecha, Guo et al. (2017BB49).

IUCrJ
Volume 7| Part 6| November 2020| Pages 955-964
ISSN: 2052-2525
https://doi.org/10.1107/S2052252520012683