O Si 
 1.0000000000000000
     7.6764542790771335   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.1682156629648004    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.4524525311047611
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  3.8382271395385659 -0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  4.2262262655523797   T   T   T
  3.8382271395385659 -0.0000000000000000  4.2262262655523797   T   T   T
 -0.0000000000000000  2.4891034133172454  2.1131131327761898   T   T   T
  3.8382271395385659  1.6791122496475546  2.1131131327761898   T   T   T
  0.0000000000000000  1.6791122496475546  6.3393393983285780   T   T   T
  3.8382271395385659  2.4891034133172454  6.3393393983285780   T   T   T
  1.9191135697692829 -0.0000000000000000  6.8402760178910258   T   T   T
  5.7573407093078490  0.0000000000000000  5.8384027787661186   T   T   T
  5.7573407093078490  0.0000000000000000  1.6121765132137393   T   T   T
  1.9191135697692829 -0.0000000000000000  2.6140497523386426   T   T   T
  1.9191135697692829  2.0841078314823998  8.2107399172942603   T   T   T
  5.7573407093078490  2.0841078314823998  4.4679388793628814   T   T   T
  5.7573407093078490  2.0841078314823998  0.2417126138105006   T   T   T
  1.9191135697692829  2.0841078314823998  3.9845136517418798   T   T   T
  6.8075697492378762  3.1275217618674693  0.9155834796199531   T   T   T
  4.7071116693778210  1.0406939010973253  0.9155834796199531   T   T   T
  0.8688845298392532  3.1275217618674693  3.3106427859324290   T   T   T
  2.9693426096993116  1.0406939010973253  3.3106427859324290   T   T   T
  0.8688845298392532  1.0406939010973253  7.5368690514848042   T   T   T
  2.9693426096993116  3.1275217618674693  7.5368690514848042   T   T   T
  6.8075697492378762  1.0406939010973253  5.1418097451723401   T   T   T
  4.7071116693778210  3.1275217618674693  5.1418097451723401   T   T   T