Electron microscopy
I-4c2 (120) Space Group
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Table 1871. I-4c2 (120) space group.

Name in the International Tables for Crystallography
I-4c2 I
139 -42m
Crystal system
Tetragonal 4/mmm
0 ≤ x ≤ 1/2 and 0 ≤ y ≤ 1/2 and 0 ≤ z ≤ 1/4
16 Extinction conditions k = 2n and l = 2n for 0 k l reflections (same as I4/mcm and I4cm).
Symmetry (atomic coordinates)
X, Y, Z; -X, -Y, Z; Y, -X, -Z; -Y, X, -Z; X, -Y, 1/2+Z; -X, Y, 1/2+Z; Y, X, 1/2-Z; -Y, -X, 1/2-Z; 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; -X+1/2, Y+1/2, Z; Y+1/2, X+1/2, -Z; -Y+1/2, -X+1/2, -Z
Crystal examples




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