Si 
 1.0000000000000000
     4.8982206274410949   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.8982206274410958    0.0000000000000000
     0.0000000000000000    0.0000000000000000    2.5727811897024062
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000 -0.0000000000000000  0.0000000000000000   T   T   T
  2.4491103137205488  2.4491103137205488  1.2863905948512031   T   T   T
 -0.0000000000000000  2.4491103137205488  0.6431952974256016   T   T   T
  2.4491103137205488  0.0000000000000000  1.9295858922768054   T   T   T