Si 
 1.0000000000000000
     6.9685962643602410    0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.9685962643602410   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    6.9685962643602410
 Si 
  12
Selective dynamics
Cartesian
  1.7421490660900603 -0.0000000000000000  3.4842981321801205   T   T   T
  5.2264471982701801 -0.0000000000000000  3.4842981321801205   T   T   T
  3.4842981321801205  1.7421490660900603 -0.0000000000000000   T   T   T
  3.4842981321801205  5.2264471982701801 -0.0000000000000000   T   T   T
 -0.0000000000000000  3.4842981321801205  1.7421490660900605   T   T   T
 -0.0000000000000000  3.4842981321801205  5.2264471982701801   T   T   T
 -0.0000000000000000  1.7421490660900603  3.4842981321801205   T   T   T
 -0.0000000000000000  5.2264471982701801  3.4842981321801205   T   T   T
  1.7421490660900603  3.4842981321801205 -0.0000000000000000   T   T   T
  5.2264471982701801  3.4842981321801205 -0.0000000000000000   T   T   T
  3.4842981321801205 -0.0000000000000000  5.2264471982701801   T   T   T
  3.4842981321801205 -0.0000000000000000  1.7421490660900605   T   T   T