O Si 
 1.0000000000000000
     4.8982706779397516   -0.0000000000000000    0.0000000000000000
    -2.4491353389698758    4.2420268417082454   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    5.3551374293524381
 O   Si 
   6   3
Selective dynamics
Cartesian
  1.0888605358463785  3.0726764856393229  4.1796933422866518   T   T   T
 -0.7563108231280614  3.6486694841098890  2.3946475325025007   T   T   T
 -0.3325497127183217  1.7627077136672860  0.6096017227183559   T   T   T
  2.1165856262515539  2.4793191280409634  1.1754440870657894   T   T   T
  3.5379958748162563  1.1693503560689265  2.9604898968499342   T   T   T
  1.6928245158418167  0.5933573575983617  4.7455357066340778   T   T   T
  2.6158039709164984  0.0000000000000013  3.5700916195682919   T   T   T
 -1.3079019854582514  2.2653526901338972  1.7850458097841455   T   T   T
  1.1412333535116259  1.9766741515743496  0.0000000000000000   T   T   T