Symmetry dictionary (symCIF) version 1.0.1
_space_group.centring_type
Name:'_space_group.centring_type'
Definition:
Symbol for the lattice centring. This symbol may be dependent on the coordinate system chosen.
Type: char
Mandatory item: no
The data value must be one of the following:
P | primitive no centring |
A | A-face centred (0,1/2,1/2) |
B | B-face centred (1/2,0,1/2) |
C | C-face centred (1/2,1/2,0) |
F | all faces centred (0,1/2,1/2), (1/2,0,1/2), (1/2,1/2,0) |
I | body centred (1/2,1/2,1/2) |
R | rhombohedral obverse centred (2/3,1/3,1/3), (1/3,2/3,2/3) |
Rrev | rhombohedral reverse centred (1/3,2/3,1/3), (2/3,1/3,2/3) |
H | hexagonal centred (2/3,1/3,0), (1/3,2/3,0) |
Category: space_group