view article
Figure 6
Precession diffraction pattern of mayenite (cubic, I[\bar4]3d, a = 11.99 Å) simulated by eMap (Oleynikov, 2006BB60) and analyzed by Space Group Determinator (Oleynikov et al., 2008BB62). The symmetry of the inner ZOLZ is 6mm but the HOLZ ring is only 3m, ruling out hexagonal space groups. The extinction rules (h + k − l = 3n) are only compatible with rhombohedral and cubic symmetries. Since the crystal is cubic, the zone axis must be [111] and the space group must be I-centered.

Journal logo FOUNDATIONS
ADVANCES
ISSN: 2053-2733
Volume 64| Part 1| January 2008| Pages 149-160
https://doi.org/10.1107/S0108767307060084
Follow Acta Cryst. A
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS