Electron microscopy
I4/m (87) Space Group
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Table 3014. I4/m (87) space group.

Name in the International Tables for Crystallography
I4/m I
87 4/m
Crystal system
Tetragonal 4/m
0 ≤ x ≤ 1/2 and 0 ≤ y ≤ 1/2 and 0 ≤ z ≤ 1/4
16 Extinction conditions k + l = 2n for 0 k l reflections (same as I-42m and I422)
Symmetry (atomic coordinates)
X, Y, Z; -X, -Y, Z; -Y, X, Z; Y, -X, Z; -X, -Y, -Z; X, Y, -Z; Y, -X, -Z; -Y, X, -Z; 1/2+X, 1/2+Y, 1/2+Z; 1/2-X, 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-X, 1/2-Y, 1/2-Z; 1/2+X, 1/2+Y, 1/2-Z; 1/2+Y, 1/2-X, 1/2-Z; 1/2-Y, 1/2+X, 1/2-Z




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