|
Axes |
Coordinates |
Wyckoff positions |
|
|
|
2a |
4b |
| I Maximal translationengleiche subgroups |
| [2] P1n1 (7) |
|
|
2a |
2 × 2a |
| [2] Pm11 (6) |
|
|
1a; 1b |
2 × 2c |
![[conventional setting]](/graphics/sg/Wconv.gif) P1m1 |
c, a, b |
z, x, y |
|
|
| [2] P1121 (4) |
|
x + (1/4), y, z |
2a |
2 × 2a |
| II Maximal klassengleiche subgroups |
| Enlarged unit cell, non-isomorphic |
| [2] Pbn21 (33) |
a, 2b, c |
x + (1/4), (1/2)y, z; +(0, (1/2), 0) |
4a |
2 × 4a |
| Pna21 |
2b, a, -c |
(1/2)y, x + (1/4), -z; +((1/2), 0, 0) |
|
|
| [2] Pbn21 (33) |
a, 2b, c |
x + (1/4), (1/2)y + (1/4), z; +(0, (1/2), 0) |
4a |
2 × 4a |
| Pna21 |
2b, a, -c |
(1/2)y + (1/4), x + (1/4), -z; +((1/2), 0, 0) |
|
|
| Enlarged unit cell, isomorphic |
| [3] Pmn21 |
3a, b, c |
(1/3)x, y, z; ±((1/3), 0, 0) |
2a; 4b |
3 × 4b |
| [p] Pmn21 |
pa, b, c |
(1/p)x, y, z; +((u/p), 0, 0) |
2a; ((p - 1)/2) × 4b |
p × 4b |
|
p = prime > 2; u = 1, . . ., p - 1 |
|
|
| [2] Pmn21 |
a, 2b, c |
x, (1/2)y, z; +(0, (1/2), 0) |
2 × 2a |
2 × 4b |
| [2] Pmn21 |
a, 2b, c |
x, (1/2)y + (1/4), z; +(0, (1/2), 0) |
2 × 2a |
2 × 4b |
| [3] Pmn21 |
a, 3b, c |
x, (1/3)y, z; ±(0, (1/3), 0) |
3 × 2a |
3 × 4b |
| [p] Pmn21 |
a, pb, c |
x, (1/p)y, z; +(0, (u/p), 0) |
p × 2a |
p × 4b |
|
p = prime; u = 1, . . ., p - 1 |
|
|
| [3] Pmn21 |
a, b, 3c |
x, y, (1/3)z; ±(0, 0, (1/3)) |
3 × 2a |
3 × 4b |
| [p] Pmn21 |
a, b, pc |
x, y, (1/p)z; +(0, 0, (u/p)) |
p × 2a |
p × 4b |
|
p = prime > 2; u = 1, . . ., p - 1 |
|
|
b
