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 <TITLE>Space group decoding</TITLE>
 <pre>
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 |                          P R O G R A M   S E X I E                          | 
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 |        Calculation of Coordination Shells and Interatomic Distances         | 
 |                                Bernhard Rupp                                | 
 |                       Version 5.4, Revision 04/11/97                        | 
 |                  Proprietary code of Bernhard Rupp  (C) 1988-97             | 
 +-----------------------------------------------------------------------------+ 
 | Title : Webjob on Wed Jul 16 2003 at 17:41:16 from 65.110.129.25            | 
 | Control parameters :                                                        | 
 | No atom card detected - space group decoding only                           | 
 +-----------------------------------------------------------------------------+ 
 | Space group C 2 2 21  , space group number  20, Laue class mmm  , z=  8     | 
 +-----------------------------------------------------------------------------+ 
 | Non centrosymmetric space group                                             | 
 | Bravais translation C-centered                                              | 
 | Translation vectors : (0,0,0), (1/2,1/2,0)                                  | 
 +-----------------------------------------------------------------------------+ 
 | 4 equipoint transformations (X)'=[R]*(X)+(T) :                              | 
 +-----------------------------------------------------------------------------+ 
 | R(11) R(12) R(13) R(21) R(22) R(23) R(31) R(32) R(33)   T(1)   T(2)   T(3)  | 
 | 1.0   0.0   0.0   0.0   1.0   0.0   0.0   0.0   1.0    0.000  0.000  0.000  | 
 | 1.0   0.0   0.0   0.0  -1.0   0.0   0.0   0.0  -1.0    0.000  0.000  0.000  | 
 |-1.0   0.0   0.0   0.0   1.0   0.0   0.0   0.0  -1.0    0.000  0.000  0.500  | 
 |-1.0   0.0   0.0   0.0  -1.0   0.0   0.0   0.0   1.0    0.000  0.000  0.500  | 
 +-----------------------------------------------------------------------------+ 
 | 4 equipoint transformations decoded into atom coordinate format :           | 
 +-----------------------------------------------------------------------------+ 
 |  X   ,  Y   ,  Z                          +(0 0 0, 1/2 1/2 0)               | 
 |  X   , -Y   , -Z                          +(0 0 0, 1/2 1/2 0)               | 
 | -X   ,  Y   ,1/2 -Z                       +(0 0 0, 1/2 1/2 0)               | 
 | -X   , -Y   ,1/2 +Z                       +(0 0 0, 1/2 1/2 0)               | 
 +-----------------------------------------------------------------------------+ 
 | 4 equipoints generated by point symmetry                                    | 
 | and doubled by face center to   8                                           | 
 | yielding the general position multiplicity of   8                           | 
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 | Conditions limiting reflections due to Bravais centering                    | 
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 | HKL : H+K=2N only                                                           | 
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 | Conditions limiting reflections due to space group symmetry                 | 
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 | 00L : L=2N only                                                             | 
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 | Asymmetric unit of intensity data for Laue group mmm                        | 
 +-----------------------------------------------------------------------------+ 
 |  h :    0 to  inf                                                           | 
 |  k :    0 to  inf                                                           | 
 |  l :    0 to  inf                                                           | 
 | No other exclusions                                                         | 
 | Coverage extends over 1/8 of reciprocal space                               | 
 +-----------------------------------------------------------------------------+ 

 Alternate listing of symmetry operators follows

      X,     Y,     Z                                                            
 1/2 +X,1/2 +Y,     Z                                                            
      X,    -Y,    -Z                                                            
 1/2 +X,1/2 -Y,    -Z                                                            
     -X,     Y,1/2 -Z                                                            
 1/2 -X,1/2 +Y,1/2 -Z                                                            
     -X,    -Y,1/2 +Z                                                            
 1/2 -X,1/2 -Y,1/2 +Z                                                            
 </pre>
  <img src="../../images/bullet_green.gif"
 <p><a href="../xray/tutorial/spaceout.htm">
 Explanation of output</a>
 </p><hr>
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