 | Acta Crystallographica Section D Acta Crystallographica Section D BIOLOGICAL CRYSTALLOGRAPHY |
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![[Figure 6]](ba0026fig6mag.jpg)
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Figure 6
Differences observed between partial merohedral and perfect merohedral twinning. A HKLVIEW (Collaborative Computational Project, Number 4, 1994  ) of the pseudo-precession photograph of the diffraction pattern of the crystals of XAT. The diffraction pattern indicates no apparent symmetry. The observed diffraction appears to be normal with a threefold symmetry. Because the observed intensities of the twin-related reflections are not equal, the diffraction pattern does not acquire an additional symmetry unlike in the case of perfect twinning. Therefore, it is very difficult to recognize partial merohedral twinning from the observed diffraction pattern. |
![[Figure 6]](ba0026fig6.jpg)
| BIOLOGICAL CRYSTALLOGRAPHY |
ISSN: 1399-0047
