O Si 
 1.0000000000000000
     4.5008100125372765   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.5008100125372774    0.0000000000000000
     0.0000000000000000    0.0000000000000000    7.5254145138712092
 O   Si 
   8   4
Selective dynamics
Cartesian
  3.8619908650924728  1.1252025031343196  0.9406768142339010   T   T   T
  0.6388191474448047  3.3756075094029572  0.9406768142339010   T   T   T
  1.1252025031343194  0.6388191474448045  6.5847376996373024   T   T   T
  3.3756075094029581  3.8619908650924715  6.5847376996373024   T   T   T
  2.8892241537134438  1.1252025031343196  4.7033840711695039   T   T   T
  1.6115858588238339  3.3756075094029572  4.7033840711695039   T   T   T
  3.3756075094029581  2.8892241537134424  2.8220304427017022   T   T   T
  1.1252025031343194  1.6115858588238339  2.8220304427017022   T   T   T
 -0.0000000000000000  0.0000000000000000 -0.0000000000000000   T   T   T
  2.2504050062686387  0.0000000000000000  5.6440608854034044   T   T   T
  2.2504050062686387  2.2504050062686392  3.7627072569356041   T   T   T
 -0.0000000000000000  2.2504050062686392  1.8813536284678021   T   T   T