Si 
 1.0000000000000000
     5.0351167194323310   -0.0000000000000000   -0.0000000000000000
     0.0000000000000000    5.0351167194323310   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    2.7330091546857513
 Si 
   4
Selective dynamics
Cartesian
 -0.0000000000000000 -0.0000000000000000 -0.0000000000000000   T   T   T
  2.5175583597161659  2.5175583597161655  1.3665045773428757   T   T   T
  0.0000000000000000  2.5175583597161655  0.6832522886714378   T   T   T
  2.5175583597161659 -0.0000000000000000  2.0497568660143135   T   T   T