view article

Figure 1
(a) MgF2 rutile unit cell. The two Mg atoms are located at (0, 0, 0) and ([\textstyle{1 \over 2}], [\textstyle{1 \over 2}], [\textstyle{1 \over 2}]), and the four F atoms are located at (u, u, 0), (−u, −u, 0), ([\textstyle{1 \over 2}] + u, [\textstyle{1 \over 2}]u, [\textstyle{1 \over 2}]) and ([\textstyle{1 \over 2}]u, [\textstyle{1 \over 2}] + u, [\textstyle{1 \over 2}]). (b) BeF2 α-quartz unit cell. The three Be atoms are located at (x, 0, [\textstyle{1\over 3}]), (0, x, [\textstyle{2\over 3}]), (−x, −x, 0), and the six F atoms are located at (x, y, z), (−y, xy, z + [\textstyle{1\over 3}]), (−x + y, −x, z + [\textstyle{2\over 3}]), (y, x, −z), (xy, −y, −z + [\textstyle{2\over 3}]), (−x, −x + y, −z + [\textstyle{1\over 3}]).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Follow J. Appl. Cryst.
Sign up for e-alerts
Follow J. Appl. Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds