Electron microscopy
 
R3 (146) Space Group
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://www.globalsino.com/EM/        

=================================================================================

 

Table 1531. R3 (146) space group.

Name in the International Tables for Crystallography
R3 R
148 3
Crystal system
Trigonal -3
Asymm
0 ≤ x ≤ 2/3 and 0 ≤ y ≤ 2/3 and 0 ≤ z ≤ 1/3 and x ≤ (1+y)/2 and y ≤ min(1-x, (1+x)/2)
9 Absence of reflections

 

Translation
 
Symmetry (atomic coordinates)
X, Y, Z; -Y, X-Y, Z; Y-X, -X, Z; X+2/3, Y+1/3, Z+1/3; -Y+2/3, X-Y+1/3, Z+1/3; Y-X+2/3, -X+1/3, Z+1/3; X+1/3, Y+2/3, Z+2/3; -Y+1/3, X-Y+2/3, Z+2/3; Y-X+1/3, -X+2/3, Z+2/3
Crystal examples
 

 

 

 

=================================================================================