Si 
 1.0000000000000000
     6.6200511345484285   -0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    6.6200511345484294    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    3.8860722409476725
 Si 
   8
Selective dynamics
Cartesian
  5.4226370093693115  5.4226370093693088  0.0000000000000000   T   T   T
  1.1974141251791184  1.1974141251791173  0.0000000000000000   T   T   T
  1.1974141251791184  5.4226370093693079  0.0000000000000000   T   T   T
  5.4226370093693115  1.1974141251791173  0.0000000000000000   T   T   T
  2.1126114420950981  2.1126114420950963  1.9430361204738364   T   T   T
  4.5074396924533380  4.5074396924533353  1.9430361204738364   T   T   T
  4.5074396924533380  2.1126114420950954  1.9430361204738364   T   T   T
  2.1126114420950981  4.5074396924533353  1.9430361204738364   T   T   T