Si 
 1.0000000000000000
    12.1630902321123671    0.0000000000000000   -0.0000000000000000
     0.0000000000000000   12.1630902321123671    0.0000000000000001
     0.0000000000000000    0.0000000000000001   12.1630902321123671
 Si 
   8
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  6.0815451160562075  6.0815451160562075   T   T   T
  6.0815451160562075  6.0815451160562075  0.0000000000000000   T   T   T
  6.0815451160562075  0.0000000000000000  6.0815451160562075   T   T   T
  9.1223176740843659  3.0407725580281038  9.1223176740843659   T   T   T
  3.0407725580281038  3.0407725580281038  3.0407725580281038   T   T   T
  3.0407725580281038  9.1223176740843659  9.1223176740843677   T   T   T
  9.1223176740843659  9.1223176740843659  3.0407725580281029   T   T   T