Origin at 2 m m
Asymmetric unit | 0 ≤ x ≤ 1/4; 0 ≤ y ≤ 1/2 |
For (0, 0)+ set
(1) 1 | (2) 2 0, 0 | (3) m 0, y | (4) m x, 0 |
For (1/2, 1/2)+ set
(1) t(1/2, 1/2) | (2) 2 1/4, 1/4 | (3) b 1/4, y | (4) a x, 1/4 |
Generators selected (1); t(1, 0); t(0, 1); t(1/2, 1/2); (2); (3)
Multiplicity, Wyckoff letter, Site symmetry | Coordinates | Reflection conditions |
|
| (0, 0)+ (1/2, 1/2)+ | General:
|
| (1) x, y | (2) -x, -y | (3) -x, y | (4) x, -y |
| hk: h + k = 2n h0: h = 2n 0k: k = 2n
|
| | Special: as above, plus
|
| | no extra conditions |
| | no extra conditions |
| | hk: h = 2n
|
| | no extra conditions |
| | no extra conditions |