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. 2018 Jul 27;4(8):1031–1036. doi: 10.1021/acscentsci.8b00289

Figure 2.

Figure 2

Cryo-TEM images, crystallization of 1. (A) Spherical aggregates formed immediately after sample preparation. (B) Aging 30–50 min, distorted densified spheres are observed (indicated by red arrows). Inset: an example of aggregate densification, scale bar is 50 nm.(C) A faceted intermediate with apparent crystallinity (indicated by a black arrow). Red arrows denote distorted densified spheres. (D) Ruptured aggregate exhibiting crystallinity (4.5 h of aging). Inset: magnified view of the marked area, showing lattice fringes. Scale bar is 20 nm. (E) Fibrous crystals growing from distorted (faceted) spherical cores (5 h of aging). (F) Developed elongated crystals (24 h of aging). Inset (magnified view of the marked area): lattice fringes. Scale bar is 5 nm. Inset: FFT analysis showing periodicity of 0.9 and 1.7 nm. Scale bar is 1 nm–1.