Electron microscopy
 
Pm-3n (223) Space Group
- Practical Electron Microscopy and Database -
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Table 1895. Pm-3n (223) space group.

Name in the International Tables for Crystallography
Pm-3n
Lattice Type
P
221 m-3m
Crystal system
Cubic m-3m
Asymm
0 ≤ x ≤ 1/2 and 0 ≤ y ≤ 1/2 and 0 ≤ z ≤ 1/4 and z ≤ min(x,1/2-x,y,1/2-y)
48 d-spacing ratios of allowed Bragg reflections 1, √2, √4, √5, √6, √8, √10, √12, √13, √14, √16, ...
Symmetry (atomic coordinates)
X, Y, Z; -X, -Y, Z; -X, Y, -Z; X, -Y, -Z; Z, X, Y; Z, -X, -Y; -Z, -X, Y; -Z, X, -Y; Y, Z, X; -Y, Z, -X; Y, -Z, -X; -Y, -Z, X; 1/2+Y, 1/2+X, 1/2-Z; 1/2-Y, 1/2-X, 1/2-Z; 1/2+Y, 1/2-X, 1/2+Z; 1/2-Y, 1/2+X, 1/2+Z; 1/2+X, 1/2+Z, 1/2-Y; 1/2-X, 1/2+Z, 1/2+Y; 1/2-X, 1/2-Z, 1/2-Y; 1/2+X, 1/2-Z, 1/2+Y; 1/2+Z, 1/2+Y, 1/2-X; 1/2+Z, 1/2-Y, 1/2+X; 1/2-Z, 1/2+Y, 1/2+X; 1/2-Z, 1/2-Y, 1/2-X; -X, -Y, -Z; X, Y, -Z; X, -Y, Z; -X, Y, Z; -Z, -X, -Y; -Z, X, Y; Z, X, -Y; Z, -X, Y; -Y, -Z, -X; Y, -Z, X; -Y, Z, X; Y, Z, -X; 1/2-Y, 1/2-X, 1/2+Z; 1/2+Y, 1/2+X, 1/2+Z; 1/2-Y, 1/2+X, 1/2-Z; 1/2+Y, 1/2-X, 1/2-Z; 1/2-X, 1/2-Z, 1/2+Y; 1/2+X, 1/2-Z, 1/2-Y; 1/2+X, 1/2+Z, 1/2+Y; 1/2-X, 1/2+Z, 1/2-Y; 1/2-Z, 1/2-Y, 1/2+X; 1/2-Z, 1/2+Y, 1/2-X; 1/2+Z, 1/2-Y, 1/2-X; 1/2+Z, 1/2+Y, 1/2+X
Crystal examples
 

 

 

 

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