Si 
 1.0000000000000000
     6.6200511018860579   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.6200511018860624   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    3.8860722111952319
 Si 
   8
Selective dynamics
Cartesian
  5.4226369807430146  5.4226369807430173 -0.0000000000000000   T   T   T
  1.1974141211430420  1.1974141211430425 -0.0000000000000000   T   T   T
  1.1974141211430420  5.4226369807430164 -0.0000000000000000   T   T   T
  5.4226369807430146  1.1974141211430425 -0.0000000000000000   T   T   T
  2.1126114297999856  2.1126114297999870  1.9430361055976157   T   T   T
  4.5074396720860692  4.5074396720860728  1.9430361055976157   T   T   T
  4.5074396720860692  2.1126114297999861  1.9430361055976157   T   T   T
  2.1126114297999856  4.5074396720860728  1.9430361055976157   T   T   T