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Input space group symbol: H 31 2" (0 0 2)
Convention: Hall symbol
Number of lattice translations: 3
Space group is acentric.
Space group is chiral.
Space group is enantiomorphic.
Number of representative symmetry operations: 6
Total number of symmetry operations: 18
Parallelepiped containing an asymmetric unit:
cctbx Error: Brick is not available for the given space group representation.
List of symmetry operations:
Matrix
| Rotation-part type
| Axis direction
| Screw/glide component
| Origin shift
|
x,y,z
| 1 | - | - | -
|
-y,x-y,z+1/3
| 3^1 | [0,0,1] | 0,0,1/3 | 0,0,0
|
-x+y,-x,z+2/3
| 3^-1 | [0,0,1] | 0,0,2/3 | 0,0,0
|
y,x,-z+1/3
| 2 | [1,1,0] | 0,0,0 | 0,0,1/6
|
-x,-x+y,-z+2/3
| 2 | [0,1,0] | 0,0,0 | 0,0,1/3
|
x-y,-y,-z
| 2 | [1,0,0] | 0,0,0 | 0,0,0
|
x+2/3,y+1/3,z
| 1 | - | - | -
|
-y+2/3,x-y+1/3,z+1/3
| 3^1 | [0,0,1] | 0,0,1/3 | 1/3,1/3,0
|
-x+y+2/3,-x+1/3,z+2/3
| 3^-1 | [0,0,1] | 0,0,2/3 | 1/3,0,0
|
y+2/3,x+1/3,-z+1/3
| 2 | [1,1,0] | 1/2,1/2,0 | 1/6,0,1/6
|
-x+2/3,-x+y+1/3,-z+2/3
| 2 | [0,1,0] | 0,0,0 | 1/3,0,1/3
|
x-y+2/3,-y+1/3,-z
| 2 | [1,0,0] | 1/2,0,0 | 0,1/6,0
|
x+1/3,y+2/3,z
| 1 | - | - | -
|
-y+1/3,x-y+2/3,z+1/3
| 3^1 | [0,0,1] | 0,0,1/3 | 0,1/3,0
|
-x+y+1/3,-x+2/3,z+2/3
| 3^-1 | [0,0,1] | 0,0,2/3 | 1/3,1/3,0
|
y+1/3,x+2/3,-z+1/3
| 2 | [1,1,0] | 1/2,1/2,0 | -1/6,0,1/6
|
-x+1/3,-x+y+2/3,-z+2/3
| 2 | [0,1,0] | 0,1/2,0 | 1/6,0,1/3
|
x-y+1/3,-y+2/3,-z
| 2 | [1,0,0] | 0,0,0 | 0,1/3,0
|
Space group number: 151
Conventional Hermann-Mauguin symbol: P 31 1 2
Universal Hermann-Mauguin symbol: P 31 1 2 (2*a+b,-a+b,c)
Hall symbol: P 31 2 (2/3*x-1/3*y,1/3*x+1/3*y,z)
Change-of-basis matrix: 2*x-y,x+y,z
Inverse: 1/3*x+1/3*y,-1/3*x+2/3*y,z
List of Wyckoff positions:
Wyckoff letter
| Multiplicity
| Site symmetry point group type
| Representative special position operator
|
c | 18 | 1 | x,y,z
|
b | 9 | 2 | 0,y,-1/6
|
a | 9 | 2 | 0,y,1/3
|
Harker planes:
Algebraic
| Normal vector
| A point in the plane
|
x-y,-x-2*y,1/3 | [0,0,1] | 0,0,1/3
|
x+y,-x-y,2*z+1/3 | [1,1,0] | 0,0,1/3
|
2*x,x,2*z+2/3 | [0,1,0] | 0,0,2/3
|
y,2*y,2*z | [1,0,0] | 0,0,0
|
Additional generators of Euclidean normalizer:
Number of structure-seminvariant vectors and moduli: 1
Vector Modulus
(2, 0, 3) 6
Further generators:
Matrix
| Rotation-part type
| Axis direction
| Screw/glide component
| Origin shift
|
-x,-y,z
| 2 | [0,0,1] | 0,0,0 | 0,0,0
|
Grid factors implied by symmetries:
Space group: (3, 3, 3)
Structure-seminvariant vectors and moduli: (3, 1, 2)
Euclidean normalizer: (3, 3, 6)
All points of a grid over the unit cell are mapped
exactly onto other grid points only if the factors
shown above are factors of the grid.
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