O Si 
 1.0000000000000000
     7.3201669270116660   -0.0000000000000000   -0.0000000000000000
    -3.6600834635058330    6.3394505187347674   -0.0000000000000000
    -0.0000000000000000    0.0000000000000000    7.0577984760081218
 O   Si 
  12   6
Selective dynamics
Cartesian
  2.3397733538581096 -0.0000000000000000  0.0000000000000000   T   T   T
 -1.1698866769290555  2.0263031635390356  4.7051989840054098   T   T   T
  2.4901967865767762  4.3131473551957242  2.3525994920027049   T   T   T
  4.9803935731535587 -0.0000000000000000  3.5288992380040600   T   T   T
 -2.4901967865767816  4.3131473551957242  1.1762997460013525   T   T   T
  1.1698866769290535  2.0263031635390356  5.8814987300067649   T   T   T
  3.6600834635058326  1.4320754578879134  5.2933488570060891   T   T   T
  4.2499114685915833  2.4536875304234247  2.9407493650033816   T   T   T
  3.0702554584200832  2.4536875304234247  0.5881498730006757   T   T   T
 -0.0000000000000021  4.9073750608468494  1.7644496190020300   T   T   T
 -0.5898280050857506  3.8857629883113365  6.4696486030074407   T   T   T
  0.5898280050857487  3.8857629883113369  4.1170491110047367   T   T   T
 -0.0000000000000010  2.9595615774329169  5.2933488570060891   T   T   T
  1.0970279533845733  4.8596697300183047  2.9407493650033816   T   T   T
 -1.0970279533845786  4.8596697300183047  0.5881498730006757   T   T   T
  3.6600834635058290  3.3798889413018447  1.7644496190020300   T   T   T
  2.5630555101212558  1.4797807887164585  6.4696486030074407   T   T   T
  4.7571114168904076  1.4797807887164585  4.1170491110047367   T   T   T