O Si 
 1.0000000000000000
     6.9649131182691075   -0.0000000000000000    0.2135102944664070
    -0.0000000000000000    7.6471580864274076    0.0000000000000000
     1.6817872749718503    0.0000000000000000    6.6686432659901502
 O   Si 
  16   8
Selective dynamics
Cartesian
 -0.0000000000000000  0.1667534810042362  0.0000000000000000   T   T   T
  3.4824565591345111  3.9903325242179961  0.1067551472332035   T   T   T
  0.8408936374859093  4.1041437246809256  3.3343216329950893   T   T   T
  4.3233501966204688  0.2805646814672217  3.4410767802283098   T   T   T
  3.4412690124846108  2.3646516949398366  2.1839129912481523   T   T   T
  5.2054313807563979  2.3646516949398309  4.6982405692084930   T   T   T
  6.9237255716190731  6.1882307381535799  2.2906681384813505   T   T   T
  1.7229748216217742  6.1882307381535977  4.5914854219752819   T   T   T
  3.1310152786484315  4.8990559474544231  2.5771428270092906   T   T   T
  5.5156851145923893  4.8990559474544142  4.3050107334473049   T   T   T
  6.6134718377830115  1.0754769042405845  2.6838979742424893   T   T   T
  2.0332285554579546  1.0754769042405863  4.1982555862141240   T   T   T
  6.6178806201721692  0.2112902232264917  5.1040945431983031   T   T   T
  2.0288197730686544  0.2112902232264917  1.7780590172582813   T   T   T
  3.1354240610376762  4.0348692664402170  4.9973393959650938   T   T   T
  5.5112763322032476  4.0348692664402224  1.8848141644914760   T   T   T
  7.3981166049235823  7.6457055354909000  1.7509122904015080   T   T   T
  1.2485837883172883  7.6457055354909054  5.1312412700550887   T   T   T
  3.9156600457890551  3.8221264922771776  1.6441571431682960   T   T   T
  4.7310403474517484  3.8221264922771780  5.2379964172882971   T   T   T
  5.6810511610282273  0.9749405056552305  4.0139859409600867   T   T   T
  2.9656492322127388  0.9749405056552300  2.8681676194964991   T   T   T
  2.1985946018936149  4.7985195488689518  3.9072307937269621   T   T   T
  6.4481057913472117  4.7985195488689483  2.9749227667296720   T   T   T