O Si 
 1.0000000000000000
     4.7803675038029612   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    8.0375619619854159    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.6078817946762953
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.3901837519014810  4.0187809809927089  0.0000000000000000   T   T   T
 -0.0000000000000000  4.0187809809927089  4.3039408973381486   T   T   T
  2.3901837519014810 -0.0000000000000000  4.3039408973381486   T   T   T
  1.1950918759507405  2.0093904904963544  5.5113372516204304   T   T   T
  3.5852756278522238  6.0281714714890571  7.4004854403940179   T   T   T
  3.5852756278522238  6.0281714714890571  3.0965445430558707   T   T   T
  1.1950918759507405  2.0093904904963544  1.2073963542822781   T   T   T
  1.8985371910185609  7.6155325898260857  1.8005646187114714   T   T   T
  0.4916465608829209  4.4408103531520364  1.8005646187114714   T   T   T
  2.8818303127844018  3.5967516088333809  2.5033762786266793   T   T   T
  4.2887209429200404  0.4220293721593269  2.5033762786266793   T   T   T
  2.8818303127844018  0.4220293721593269  6.8073171759648252   T   T   T
  4.2887209429200404  3.5967516088333809  6.8073171759648252   T   T   T
  1.8985371910185609  4.4408103531520364  6.1045055160496231   T   T   T
  0.4916465608829209  7.6155325898260857  6.1045055160496231   T   T   T
  3.0443561935555703  7.5290783281016882  2.9300615522955069   T   T   T
  4.1261950621488763  4.5272646148764295  2.9300615522955069   T   T   T
  1.7360113102473942  3.5102973471089820  1.3738793450426423   T   T   T
  0.6541724416540882  0.5084836338837239  1.3738793450426423   T   T   T
  1.7360113102473942  0.5084836338837239  5.6778202423807933   T   T   T
  0.6541724416540882  3.5102973471089820  5.6778202423807933   T   T   T
  3.0443561935555703  4.5272646148764295  7.2340024496336577   T   T   T
  4.1261950621488763  7.5290783281016882  7.2340024496336577   T   T   T