O Si 
 1.0000000000000000
     4.9667822420481906    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.9667822420481906   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    7.4320589762439022
 O   Si 
   8   4
Selective dynamics
Cartesian
  4.5276750937958088  1.2416955605120474  0.9290073720304879   T   T   T
  0.4391071482523785  3.7250866815361423  0.9290073720304879   T   T   T
  1.2416955605120472  0.4391071482523786  6.5030516042134181   T   T   T
  3.7250866815361428  4.5276750937958088  6.5030516042134181   T   T   T
  2.9224982692764740  1.2416955605120474  4.6450368601524410   T   T   T
  2.0442839727717170  3.7250866815361423  4.6450368601524410   T   T   T
  3.7250866815361428  2.9224982692764732  2.7870221160914643   T   T   T
  1.2416955605120472  2.0442839727717170  2.7870221160914643   T   T   T
  0.0000000000000000 -0.0000000000000000 -0.0000000000000000   T   T   T
  2.4833911210240944 -0.0000000000000000  5.5740442321829287   T   T   T
  2.4833911210240944  2.4833911210240949  3.7160294881219516   T   T   T
  0.0000000000000000  2.4833911210240949  1.8580147440609758   T   T   T