Si 
 1.0000000000000000
     6.2726654823664250   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    6.2726654823664250    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.7580984133265161
 Si 
   8
Selective dynamics
Cartesian
  5.1386207745497812  5.1386207745497803  0.0000000000000000   T   T   T
  1.1340447078166398  1.1340447078166398  0.0000000000000000   T   T   T
  1.1340447078166398  5.1386207745497794  0.0000000000000000   T   T   T
  5.1386207745497812  1.1340447078166398  0.0000000000000000   T   T   T
  2.0022880333665709  2.0022880333665696  1.8790492066632571   T   T   T
  4.2703774489998541  4.2703774489998523  1.8790492066632571   T   T   T
  4.2703774489998541  2.0022880333665687  1.8790492066632571   T   T   T
  2.0022880333665709  4.2703774489998523  1.8790492066632571   T   T   T