O Si 
 1.0000000000000000
     8.4314177989968719    0.0000000000000000   -0.0000000000000000
    -4.2157088994984360    7.3018220038515507   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.9980086401633184
 O   Si 
  12   6
Selective dynamics
Cartesian
  4.2157088994984386  0.0000000000000000 -0.0000000000000000   T   T   T
 -2.1078544497492189  3.6509110019257776 -0.0000000000000000   T   T   T
  2.1078544497492193  3.6509110019257776 -0.0000000000000000   T   T   T
  4.2157088994984386  0.0000000000000000  1.9990043200816583   T   T   T
 -2.1078544497492189  3.6509110019257776  1.9990043200816583   T   T   T
  2.1078544497492193  3.6509110019257776  1.9990043200816583   T   T   T
 -1.9341042747818809  5.9845369595871603 -0.0000000000000000   T   T   T
  0.0000000000000004  2.6345700885287902 -0.0000000000000000   T   T   T
  1.9341042747818822  5.9845369595871603  0.0000000000000000   T   T   T
  6.1498131742803235  1.3172850442643955 -0.0000000000000000   T   T   T
  4.2157088994984377  4.6672519153227627  0.0000000000000000   T   T   T
  2.2816046247165591  1.3172850442643957 -0.0000000000000000   T   T   T
  2.8518540912686210  0.0000000000000000  0.8633912546644827   T   T   T
 -1.4259270456343094  2.4697780909252032  0.8633912546644827   T   T   T
  2.7897818538641301  4.8320439129263537  0.8633912546644827   T   T   T
 -2.7897818538641292  4.8320439129263537  3.1346173854988324   T   T   T
  5.5795637077282603  0.0000000000000000  3.1346173854988324   T   T   T
  1.4259270456343107  2.4697780909252032  3.1346173854988324   T   T   T