O Si 
 1.0000000000000000
     7.3471843432690616    0.0000000000000000   -0.0000000000000000
    -3.6735921716345308    6.3628482875582986    0.0000000000000000
     0.0000000000000000   -0.0000000000000000    7.0219375183954078
 O   Si 
  12   6
Selective dynamics
Cartesian
  2.3640546733779426  0.0000000000000000 -0.0000000000000000   T   T   T
 -1.1820273366889709  2.0473314030806220  4.6812916789302674   T   T   T
  2.4915648349455628  4.3155168844776783  2.3406458394651337   T   T   T
  4.9831296698911274  0.0000000000000000  3.5109687591977017   T   T   T
 -2.4915648349455637  4.3155168844776783  1.1703229197325669   T   T   T
  1.1820273366889709  2.0473314030806220  5.8516145986628363   T   T   T
  3.6735921716345334  1.4330535878454476  5.2664531387965532   T   T   T
  4.2693274453932073  2.4648973498564257  2.9258072993314173   T   T   T
  3.0778568978758583  2.4648973498564257  0.5851614598662829   T   T   T
 -0.0000000000000004  4.9297946997128514  1.7554843795988508   T   T   T
 -0.5957352737586744  3.8979509377018728  6.4367760585291212   T   T   T
  0.5957352737586747  3.8979509377018733  4.0961302190639843   T   T   T
  0.0000000000000001  2.9703323129138139  5.2664531387965532   T   T   T
  1.1012089309693807  4.8776821311013903  2.9258072993314173   T   T   T
 -1.1012089309693815  4.8776821311013903  0.5851614598662829   T   T   T
  3.6735921716345321  3.3925159746444842  1.7554843795988508   T   T   T
  2.5723832406651530  1.4851661564569070  6.4367760585291212   T   T   T
  4.7748011026039157  1.4851661564569070  4.0961302190639843   T   T   T