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Figure 7
Illustrations for the crystal structures of 1b and 3b: packing diagrams for (a) 1b and (b) 3b; β-sheets observed in (c) 1b and (d) 3b. Notice the difference in alignment of molecules within the β-sheet between 1b and 3b.

IUCrJ
Volume 2| Part 5| September 2015| Pages 523-533
ISSN: 2052-2525