Si 
 1.0000000000000000
     6.6200511018860615    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    6.6200511018860624   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.8860722111952373
 Si 
   8
Selective dynamics
Cartesian
  5.4226369807430173  5.4226369807430199 -0.0000000000000000   T   T   T
  1.1974141211430425  1.1974141211430429 -0.0000000000000000   T   T   T
  1.1974141211430425  5.4226369807430190 -0.0000000000000000   T   T   T
  5.4226369807430173  1.1974141211430429 -0.0000000000000000   T   T   T
  2.1126114297999874  2.1126114297999883  1.9430361055976193   T   T   T
  4.5074396720860737  4.5074396720860772  1.9430361055976193   T   T   T
  4.5074396720860737  2.1126114297999874  1.9430361055976193   T   T   T
  2.1126114297999874  4.5074396720860772  1.9430361055976193   T   T   T