O Si 
 1.0000000000000000
     6.5176012823615084    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    6.5176012823614977    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    8.6873363587968022
 O   Si 
  16   8
Selective dynamics
Cartesian
  2.5522788158898648  2.5522788158898631  2.1718340896992023   T   T   T
  3.9653224664716364  3.9653224664716267  2.1718340896992023   T   T   T
  2.5522788158898648  3.9653224664716267  6.5155022690976034   T   T   T
  3.9653224664716364  2.5522788158898631  6.5155022690976034   T   T   T
 -0.0000000000000009  3.2588006411807489  5.7344109397763301   T   T   T
  3.2588006411807533 -0.0000000000000009  2.9529254190204783   T   T   T
 -0.0000000000000009  3.2588006411807489  1.3907427603779241   T   T   T
  3.2588006411807533 -0.0000000000000009  7.2965935984188857   T   T   T
  2.0272577354821428  2.1058611053403884  8.4261961833639187   T   T   T
  4.4903435468793580  4.4117401770211062  8.4261961833639187   T   T   T
  2.1058611053403924  4.4903435468793544  0.2611401754329032   T   T   T
  4.4117401770211133  2.0272577354821379  0.2611401754329034   T   T   T
  2.0272577354821428  4.4117401770211062  4.0825280039654990   T   T   T
  4.4903435468793580  2.1058611053403884  4.0825280039654990   T   T   T
  2.1058611053403924  2.0272577354821379  4.6048083548313032   T   T   T
  4.4117401770211133  4.4903435468793544  4.6048083548313032   T   T   T
  3.4139608583516927  1.5670077572673846  7.7228347474059973   T   T   T
  3.1036404240098103  4.9505935250941118  7.7228347474059973   T   T   T
  1.5670077572673882  3.1036404240098086  0.9645016113908070   T   T   T
  4.9505935250941162  3.4139608583516852  0.9645016113908070   T   T   T
  3.4139608583516927  4.9505935250941118  3.3791665680075971   T   T   T
  3.1036404240098103  1.5670077572673846  3.3791665680075971   T   T   T
  1.5670077572673882  3.4139608583516852  5.3081697907892140   T   T   T
  4.9505935250941162  3.1036404240098086  5.3081697907892140   T   T   T