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Figure 2
[001] projection of the unit cell of HTGS at 20 K with hydrogen bonds shown as dashed lines. The O15—H15⋯O3 hydrogen bonds are shown as pink dashed lines. Glycine molecules are represented as glycine I (GI), glycine II (GII), and glycine III (GIII), according to Hoshino et al. (1959 ![]() |