Figure 8
Caffeine model loaded as though
it were packed in a crystal having orthorhombic space group
P212121.
The twofold screw axis parallel to the a
axis is shown (load caffeine.xyz {1 1 1}
spacegroup "P 21 21 21" unitcell {10.0 12.0 8.0 90 90 90}; draw
symop {atomno=7} {atomno=55}). |