Figure 6
(a) The distribution of voids in cystine under ambient conditions, viewed with the c-axis vertical. The numbers 1–4 refer to regions of the structure, as discussed in the text. (b) Voids in the glycine-like (16) layers under ambient conditions. The colour scheme represents the volumes of the VDPs of the voids (in Å3) as discussed by Blatov & Shevchenko (2003); the largest void is shown in white, voids then progressively decrease in volume from blue to red; precise values are given in the legend. |