O Si 
 1.0000000000000000
     6.9050864988235094   -0.0000000000000000    0.1871058790670536
    -0.0000000000000000    7.4054165415154332   -0.0000000000000000
     1.6429506572171497   -0.0000000000000000    6.5649936732394414
 O   Si 
  16   8
Selective dynamics
Cartesian
 -0.0000000000000000  0.3569101902031869 -0.0000000000000000   T   T   T
  3.4525432494117552  4.0596184609609036  0.0935529395335268   T   T   T
  0.8214753286085764  3.9509773337001945  3.2824968366197167   T   T   T
  4.2740185780203284  0.2482690629424731  3.3760497761532426   T   T   T
  3.3368583061146659  2.2709220867385462  2.0388182943786481   T   T   T
  5.2111788499259921  2.2709220867385462  4.7132812579278331   T   T   T
  6.7894015555264211  5.9736303574962690  2.1323712339121768   T   T   T
  1.7586356005142436  5.9736303574962690  4.6197283183943032   T   T   T
  3.1126323871885404  4.7872102724616861  2.5635503077925321   T   T   T
  5.4354047688521279  4.7872102724616861  4.1885492445139461   T   T   T
  6.5651756366002862  1.0845020017039753  2.6571032473260594   T   T   T
  1.9828615194403674  1.0845020017039748  4.0949963049804206   T   T   T
  6.5464992176733316  0.0991056369649478  5.0057718168090286   T   T   T
  2.0015379383673286  0.0991056369649478  1.7463277354974602   T   T   T
  3.0939559682615809  3.8018139077226647  4.9122188772755040   T   T   T
  5.4540811877790869  3.8018139077226647  1.8398806750309864   T   T   T
  7.3154398520926396  7.4362216297182648  1.6966939464060942   T   T   T
  1.2325973039480320  7.4362216297182648  5.0554056059003933   T   T   T
  3.8628966026808733  3.7335133589605465  1.6031410068725667   T   T   T
  4.6851405533597834  3.7335133589605483  5.1489585454339224   T   T   T
  5.6272967636679887  0.9073688182034408  3.9547473718485899   T   T   T
  2.9207403923726765  0.9073688182034405  2.7973521804578971   T   T   T
  2.1747535142562282  4.6100770889611598  3.8611944323150618   T   T   T
  6.3732836417844281  4.6100770889611589  2.8909051199914226   T   T   T