O Si 
 1.0000000000000000
     4.9917914102989815   -0.0000000000000000   -0.0007533198025828
    -0.0000000000000000    8.6102831978482985   -0.0000000000000000
    -4.7621805200420573   -0.0000000000000000    8.0563602605759854
 O   Si 
  16   8
Selective dynamics
Cartesian
 -3.4535123477629228  8.8311536621320581  6.2925121987779136   T   T   T
 -1.0724220877418955 -0.2208704642837655  2.2643320684899186   T   T   T
 -0.9576166426134278  4.5260120632079097  6.2921355388766180   T   T   T
  1.4234736174075997  4.0842711346403791  2.2639554085886284   T   T   T
 -1.7543158310275639  6.9327908293357279  5.5047696201319170   T   T   T
  0.6267744289934637  1.6774923685125689  1.4765894898439211   T   T   T
  0.7415798741219275  2.6276492304115804  5.5043929602306223   T   T   T
  3.1226701341429526  5.9826339674367128  1.4762128299426303   T   T   T
 -0.9741374799393878  0.7423104591823947  5.7402806376957614   T   T   T
  1.4069527800816410  7.8679727386659009  1.7121005074077655   T   T   T
 -3.4700331850888824  5.0474520581065425  5.7406572975970489   T   T   T
 -1.0889429250678511  3.5628311397417565  1.7124771673090600   T   T   T
 -1.5231475701936825  7.9907970513079176  7.8770767900751135   T   T   T
  0.8579426898273468  0.6194861465403796  3.8488966597871168   T   T   T
 -4.0190432753431677  3.6856554523837697  7.8774534499764002   T   T   T
 -1.6379530153221455  4.9246277454645213  3.8492733196884119   T   T   T
 -1.9553391539670206  8.2659712181033616  6.3691471526050645   T   T   T
  0.4257511060540052  0.3443119797449399  2.3409670223170700   T   T   T
  0.5405565511824718  3.9608296191792061  6.3687704927037805   T   T   T
  2.9216468112035021  4.6494535786690907  2.3405903624157762   T   T   T
 -1.9656824881601469  5.3586957928927763  5.3544757780625236   T   T   T
  0.4154077718608806  3.2515874049555147  1.3262956477745316   T   T   T
  0.5302132169893460  1.0535541939686341  5.3540991181612316   T   T   T
  2.9113034770103736  7.5567290038796653  1.3259189878732411   T   T   T