                      <big><b>  ****  Space Group Determination Section ****</b></big>

<big><b><span foreground="red">    Laue Class:   1 2/m 1       </span></b></big>

 
 
               SYSTEMATIC ABSENCE EXCEPTIONS
 
 
 
  Note: Symbol # means not equal  
      NR    means number of reflections (equivalent included)
      NRcl  means number of input reflections in each class
      [A]   means &#60;E**2&#62; over the class of reflections expected to be
              systematicly absent: e.g. (0k0) with k=2n+1 for P 1 21 1
      nEs   means number of reflections with Esure
      [B]   means &#60;Esure**2&#62;/nEsure
      [E]   means [A]extincted/[A]notextincted

   Class    NRcl. &#60;E**2&#62;cl.  
 Condition             NR      [A]        nEs       [B]       [E]  Sym. Op. 

   h  0  0     6   0.800
 h#2n                   0       0.41         1      0.76      0.35  ______          
 h=2n                   3       1.19
   0  k  0    14   1.045
 k#2n                   0       0.02         0      0.00      0.01  _ 21 _          
 k=2n                   6       2.41
   0  0  l    22   0.415
 l#2n                   0       0.45         4      0.51      1.24  ______          
 l=2n                  10       0.37
   0  k  l   229   0.941
 k#2n                   0       0.82        24      1.55      0.73  ______          
 k=2n                 115       1.12
 l#2n                   0       1.02        25      2.09      1.12  ______          
 l=2n                 112       0.91
 k#2n,l#2n              0       0.90        32      2.08      0.75  ______          
 k=2n,l=2n             56       1.19
 k+l#2n                 0       0.85        17      2.65      0.79  ______          
 k+l=2n               114       1.07
   h  0  l   261   0.681
 h#2n                   0       0.67        22      1.26      0.98  _ a _           
 h=2n                 129       0.69
 l#2n                   0       0.61        24      1.01      0.82  _ c _           
 l=2n                 129       0.75
 h#2n,l#2n              0       0.65        36      1.20      0.82  ______          
 h=2n,l=2n             62       0.79
 h+l#2n                 0       0.65        28      1.27      0.92  _ n _           
 h+l=2n               127       0.71
   h  k  0   157   0.913
 h#2n                   0       1.10        20      2.11      1.60  ______          
 h=2n                  78       0.69
 k#2n                   0       0.67         8      2.36      0.57  ______          
 k=2n                  74       1.18
 h#2n,k#2n              0       0.84        20      2.13      0.74  ______          
 h=2n,k=2n             37       1.14
 h+k#2n                 0       0.75        14      1.81      0.70  ______          
 h+k=2n                79       1.06
   h  k  l  2865   0.986
 h+k#2n                 0       0.93       232      1.54      0.87  C lattice       
 h+k=2n              1435       1.07
 k+l#2n                 0       0.73       165      1.76      0.58  A lattice       
 k+l=2n              1434       1.27
 h+l#2n                 0       1.02       240      1.79      1.04  B lattice       
 h+l=2n              1424       0.98
 h+k+l#2n               0       1.02       257      1.81      1.04  I lattice       
 h+k+l=2n            1431       0.98
   
   
