Si 
 1.0000000000000000
     2.7558883770477407    0.0000000000000000   -0.0000000000000000
    -1.3779441885238704    2.3866693445176113    0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    4.5003632753349327
 Si 
   2
Selective dynamics
Cartesian
 -0.0000000137794419  1.5911129043006389  1.1250908188337332   T   T   T
  1.3779441747444288  0.7955564561281017  3.3752724565012002   T   T   T