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Figure 9
Ball-and-stick models of L-cystine at (a) ambient pressure and (b) 3.7 GPa as viewed down ([01\bar2]). The red planes are through the Cα atoms in each glycine-like layer running perpendicular to the c-axes of each plot. The overall compression of L-cystine caused via the `twisting' of the molecules can be seen in compression between the layers (A), and between pairs of layers (B). The distance between layers A and B reduces from 3.729 (2) to 3.539 (21) Å, and 5.597 (2) to 5.386 (22) Å from ambient to 3.7 GPa, respectively. The distance between the first and last adjacent pairs of layers for both the ambient and 3.7 GPa data sets is shown.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 12| Part 5| August 2005| Pages 598-607
doi:10.1107/S0909049505019850
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