Origin at 4 m m
Asymmetric unit | 0 ≤ x ≤ 1/2; 0 ≤ y ≤ 1/2; x ≤ y |
(1) 1 | (2) 2 0, 0 | (3) 4+ 0, 0 | (4) 4- 0, 0 |
(5) m 0, y | (6) m x, 0 | (7) m x, x | (8) m x, -x |
Generators selected (1); t(1, 0); t(0, 1); (2); (3); (5)
Multiplicity, Wyckoff letter, Site symmetry | Coordinates | Reflection conditions |
|
| | General:
|
| (1) x, y | (2) -x, -y | (3) -y, x | (4) y, -x | (5) -x, y | (6) x, -y | (7) y, x | (8) -y, -x |
| no conditions |
| | Special: as above, plus
|
| | no extra conditions |
| x, 1/2 | -x, 1/2 | 1/2, x | 1/2, -x |
| no extra conditions |
| | no extra conditions |
| | hk: h + k = 2n
|
| | no extra conditions |
| | no extra conditions |