O Si 
 1.0000000000000000
     6.9441093052351794   -0.0000000000000000    0.0775686192360411
    -0.0000000000000000    8.3124502380380392   -0.0000000000000000
     3.0310593239208132   -0.0000000000000000    6.1868354195360844
 O   Si 
  16   8
Selective dynamics
Cartesian
 -0.0000000000000000  0.4279395785403705 -0.0000000000000000   T   T   T
  3.4720546526175884  4.5841646975593875  0.0387843096180206   T   T   T
  1.5155296619604037  6.3895595616884799  3.0934177097680435   T   T   T
  4.9875843145779939  2.2333344426694532  3.1322020193860673   T   T   T
  3.1532726870951469  0.6839408554622385  3.5439998165769371   T   T   T
  6.8218959420608440  0.6839408554622385  2.7204042221951892   T   T   T
  6.6253273397127321  4.8401659744812600  3.5827841261949627   T   T   T
  3.3498412894432534  4.8401659744812582  2.6816199125771716   T   T   T
  4.6597847406070549  0.4990494018152520  1.4018655508290321   T   T   T
  5.3153838885489364  0.4990494018152520  4.8625384879430884   T   T   T
  1.1877300879894641  4.6552745208342641  1.3630812412110118   T   T   T
  8.7874385411665052  4.6552745208342641  4.9013227975611144   T   T   T
  7.1030313939831142  2.5617902765397176  4.6788695439003991   T   T   T
  2.8721372351728731  2.5617902765397171  1.5855344948717234   T   T   T
  3.6309767413655245  6.7180153955587398  4.6400852342823855   T   T   T
  6.3441918877904628  6.7180153955587398  1.6243188044897454   T   T   T
  6.2053435261640546  8.2856112152009924  1.4011743739894655   T   T   T
  3.7698251029919301  8.2856112152009924  4.8632296647826649   T   T   T
  2.7332888735464604  4.1293860961819684  1.3623900643714444   T   T   T
  7.2418797556095198  4.1293860961819684  4.9020139744006830   T   T   T
  6.1912516768266705  1.5192961894941230  3.9332589531159208   T   T   T
  3.7839169523293248  1.5192961894941226  2.3311450856562042   T   T   T
  2.7191970242090702  5.6755213085131375  3.8944746434979041   T   T   T
  7.2559716049469092  5.6755213085131375  2.3699293952742253   T   T   T