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Axes |
Coordinates |
Wyckoff positions |
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2a |
6b |
6c |
6d |
8e |
12f |
12g |
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12h |
16i |
24j |
24k |
48l |
I Maximal translationengleiche subgroups |
[2] P-43n |
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2a |
6b |
6d |
6c |
8e |
12f |
12h |
(218) |
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12g |
2 × 8e |
24i |
24i |
2 × 24i |
[2] P4232 |
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2a |
6d |
6e |
6f |
4b; 4c |
12h |
12i |
(208) |
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12j |
2 × 8g |
12k; 12l |
24m |
2 × 24m |
[2] Pm-3 |
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1a; 1b |
3c; 3d |
6f |
6g |
8i |
6e; 6h |
2 × 6f |
(200) |
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2 × 6g |
2 × 8i |
24l |
12j; 12k |
2 × 24l |
[4] R-3c |
(rhombohedral axes) |
2b |
6d |
6e |
6e |
2a; 6e |
12f |
12f |
(167) |
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12f |
4c; 12f |
2 × 6e; 12f |
2 × 12f |
4 × 12f |
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a - b, b - c, |
(1/3)(2x - y - z), (1/3)(x + y - 2z), |
6b |
18d |
18e |
18e |
6a; 18e |
36f |
36f |
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a + b + c |
(1/3)(x + y + z) |
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36f |
12c; 36f |
2 × 18e; 36f |
2 × 36f |
4 × 36f |
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(hexagonal axes) |
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conjugate: |
-a - b, b + c, |
(1/3)(-2x - y + z), (1/3)(-x + y + 2z), |
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-a + b - c |
(1/3)(-x + y - z) |
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(hexagonal axes) |
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conjugate: |
a + b, -b + c, |
(1/3)(2x + y + z), (1/3)(x - y + 2z), |
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a - b - c |
(1/3)(x - y - z) |
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(hexagonal axes) |
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conjugate: |
-a + b, -b - c, |
(1/3)(-2x + y - z), (1/3)(-x - y - 2z), |
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-a - b + c |
(1/3)(-x - y + z) |
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(hexagonal axes) |
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[3] P42/mmc |
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x + (1/2), y, z |
2d |
2a; 2b; 2c |
2f; 4l |
2e; 4m |
8n |
4i; 4j; 4k |
4h; 2 × 4l |
(131) |
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4g; 2 × 4m |
16r |
8n; 16r |
8o; 8p; 8q |
3 × 16r |
conjugate: |
b, c, a |
y + (1/2), z, x |
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conjugate: |
c, a, b |
z + (1/2), x, y |
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II Maximal klassengleiche subgroups |
Enlarged unit cell, non-isomorphic |
[4] Ia-3d |
2a, 2b, 2c |
(1/2)x, (1/2)y, (1/2)z; +((1/2), 0, 0); |
16a |
48f |
24c; 24d |
48g |
16b; 48g |
96h |
2 × 48f |
(230) |
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+(0, (1/2), 0); +(0, 0, (1/2)) |
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96h |
32e; 96h |
2 × 48g; 96h |
2 × 96h |
4 × 96h |
[4] Ia-3d |
2a, 2b, 2c |
(1/2)x + (1/4), (1/2)y + (1/4), (1/2)z + (1/4); |
16a |
48f |
48g |
24c; 24d |
16b; 48g |
96h |
96h |
(230) |
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+((1/2), 0, 0); +(0, (1/2), 0); |
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2 × 48f |
32e; 96h |
2 × 48g; 96h |
2 × 96h |
4 × 96h |
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+(0, 0, (1/2)) |
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Enlarged unit cell, isomorphic |
[27] Pm-3n |
3a, 3b, 3c |
(1/3)x, (1/3)y, (1/3)z; ±((1/3), 0, 0); |
2a; 12f; |
6b; 12f; |
6c; 12g; |
6d; 12h; |
8e; 16i; |
3 × 12f; |
3 × 12g; |
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±(0, (1/3), 0); ±(0, 0, (1/3)); |
16i; 24k |
12g; 12h; |
24j; |
24j; |
2 × 24j; |
6 × 24k; |
6 × 24k; |
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±(0, (1/3), (1/3)); ±((1/3), 0, (1/3)); |
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3 × 24k; 48l |
3 × 24k; 48l |
3 × 24k; 48l |
3 × 48l |
3 × 48l |
3 × 48l |
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±((1/3), (1/3), 0); ±(0, (1/3), (2/3)); |
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±((1/3), 0, (2/3)); ±((1/3), (2/3), 0); |
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3 × 12h; |
3 × 16i; |
3 × 24j; |
9 × 24k; |
27 × 48l |
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±((1/3), (1/3), (1/3)); ±((1/3), (1/3), (2/3)); |
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6 × 24k; |
8 × 48l |
12 × 48l |
9 × 48l |
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±((1/3), (2/3), (1/3)); ±((2/3), (1/3), (1/3)) |
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3 × 48l |
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