O Si 
 1.0000000000000000
     7.7715842884995219   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.4259333335416224    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.8962655531061436
 O   Si 
  16   8
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  3.8857921442497618 -0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  4.4481327765530727   T   T   T
  3.8857921442497618 -0.0000000000000000  4.4481327765530727   T   T   T
 -0.0000000000000000  2.8608004905902411  2.2240663882765364   T   T   T
  3.8857921442497618  1.5651328429513853  2.2240663882765364   T   T   T
  0.0000000000000000  1.5651328429513853  6.6721991648295980   T   T   T
  3.8857921442497618  2.8608004905902411  6.6721991648295980   T   T   T
  1.9428960721248809 -0.0000000000000000  7.2180860801819184   T   T   T
  5.8286882163746458  0.0000000000000000  6.1263122494772873   T   T   T
  5.8286882163746458 -0.0000000000000000  1.6781794729242223   T   T   T
  1.9428960721248809  0.0000000000000000  2.7699533036288448   T   T   T
  1.9428960721248809  2.2129666667708117  8.3947428365010683   T   T   T
  5.8286882163746458  2.2129666667708117  4.9496554931581302   T   T   T
  5.8286882163746458  2.2129666667708117  0.5015227166050644   T   T   T
  1.9428960721248809  2.2129666667708117  3.9466100599480018   T   T   T
  6.8288829950868628  3.3959829279733551  1.0824340546339628   T   T   T
  4.8284934376624200  1.0299504055682696  1.0824340546339628   T   T   T
  0.9427012934126604  3.3959829279733551  3.3656987219191041   T   T   T
  2.9430908508371023  1.0299504055682696  3.3656987219191041   T   T   T
  0.9427012934126604  1.0299504055682696  7.8138314984721733   T   T   T
  2.9430908508371023  3.3959829279733551  7.8138314984721733   T   T   T
  6.8288829950868628  1.0299504055682696  5.5305668311870333   T   T   T
  4.8284934376624200  3.3959829279733551  5.5305668311870333   T   T   T