Si 
 1.0000000000000000
     5.1332197361041016    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.1332197361041008   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    2.6246286065273021
 Si 
   4
Selective dynamics
Cartesian
 -0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.5666098680520504  2.5666098680520495  1.3123143032636508   T   T   T
 -0.0000000000000000  2.5666098680520495  0.6561571516318254   T   T   T
  2.5666098680520504 -0.0000000000000000  1.9684714548954767   T   T   T