International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C, ch. 9.7, p. 898

Table 9.7.1.1 

A. J. C. Wilson,a V. L. Karenb and A. Mighellb

aSt John's College, Cambridge CB2 1TP, England, and bNIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA

Table 9.7.1.1| top | pdf |
Kitajgorodskij's categorization of the triclinic, monoclinic and orthorhombic space groups, as modified by Wilson (1993a[link])

Wilson's additions are enclosed in square brackets [...] and the original positions of space groups transferred by him by round brackets (...). Space groups not listed belong to the `impossible' category.

Molecular symmetry1[\overline {1}]2m2/m222mmmmm
Closest packed P[\overline {1} ] P[\overline {1} ]            
P21              
P21/c P21/c            
[C2/c] C2/c [C2/c]          
P212121              
Pca21              
Pna21              
[Pbca] Pbca            
Limitingly close packed     (C2/c)   C2/m      
[P21212]   P21212     C222    
          F222    
          I222    
      Pmc21     Fmm2  
      Cmc21        
[Pbcn]   Pbcn Pnma     Pmma, Pmmn  
        Cmca Ccca   Cmmm
            Fmmm
              Immm
Permissible P1              
C2   C2          
[Pc]              
Cc     Cm Pbam      
[P2/c]   [P2/c] P21/m        
(P21212)              
[C2221]   [C2221]          
      Pmn21        
    Aba2 Ama2        
    [Fdd2] Ima2        
(Pbca)     Pbcm        
[Pccn] Pccn            
Kitajgorodskij (1961[link]) includes Pnnm at this position, but this is inconsistent with the text of either the Russian or the English version.
Kitajgorodskij (1961[link]) correctly includes Pbcm at this position.