O Si 
 1.0000000000000000
     8.2126636403511721    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    8.2126636403511704   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    5.5346120454863872
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  4.1063318201755852 -0.0000000000000000   T   T   T
  4.1063318201755861 -0.0000000000000000  2.7673060227431936   T   T   T
 -0.0000000000000000  4.1063318201755852  2.7673060227431936   T   T   T
  4.1063318201755861  0.0000000000000000 -0.0000000000000000   T   T   T
  2.1620366826459874  2.1620366826459856 -0.0000000000000000   T   T   T
  6.0506269577051865  6.0506269577051830 -0.0000000000000000   T   T   T
  6.0506269577051865  2.1620366826459856  2.7673060227431936   T   T   T
  2.1620366826459874  6.0506269577051830  2.7673060227431936   T   T   T
  1.9930953986022102 -0.0000000000000000  1.3836530113715968   T   T   T
  6.2195682417489655 -0.0000000000000000  1.3836530113715968   T   T   T
 -0.0000000000000000  1.9930953986022089  4.1509590341147913   T   T   T
 -0.0000000000000000  6.2195682417489637  4.1509590341147913   T   T   T
  6.2195682417489655 -0.0000000000000000  4.1509590341147913   T   T   T
  1.9930953986022102 -0.0000000000000000  4.1509590341147913   T   T   T
 -0.0000000000000000  6.2195682417489637  1.3836530113715968   T   T   T
 -0.0000000000000000  1.9930953986022089  1.3836530113715968   T   T   T
  0.5728903643558274  2.5797324094816600 -0.0000000000000000   T   T   T
  7.6397732759953456  5.6329312308695130 -0.0000000000000000   T   T   T
  5.6329312308695139  0.5728903643558272  2.7673060227431936   T   T   T
  2.5797324094816600  7.6397732759953421  2.7673060227431936   T   T   T
  7.6397732759953456  2.5797324094816600  2.7673060227431936   T   T   T
  0.5728903643558274  5.6329312308695130  2.7673060227431936   T   T   T
  2.5797324094816600  0.5728903643558272 -0.0000000000000000   T   T   T
  5.6329312308695139  7.6397732759953421 -0.0000000000000000   T   T   T