O Si 
 1.0000000000000000
     5.0635717353338956    0.0000000000000000   -0.0000000000000000
    -2.5317858676669478    4.3851817566840046    0.0000000000000000
     0.0000000000000000   -0.0000000000000000    8.5600682995813369
 O   Si 
   8   4
Selective dynamics
Cartesian
 -0.0000000253178599  2.9234545190732768  2.1400170748953342   T   T   T
  2.5317858423490889  1.4617272668452741  6.4200512246860022   T   T   T
  2.1122907301804243  0.0000000146172730 -0.0000000000000000   T   T   T
 -1.0561454030670017  1.8292974690578097  0.0000000000000000   T   T   T
  1.4756404645999457  2.5558843168607410 -0.0000000000000000   T   T   T
  2.9512809545177530  0.0000000146172730  4.2800341497906684   T   T   T
 -1.4756405152356649  2.5558843168607410  4.2800341497906684   T   T   T
  1.0561453524312823  1.8292974690578097  4.2800341497906684   T   T   T
 -0.0000000253178599  2.9234545190732768  3.7511974523897305   T   T   T
  2.5317858423490889  1.4617272668452741  8.0312316021804033   T   T   T
  2.5317858423490889  1.4617272668452741  4.8088708471916082   T   T   T
 -0.0000000253178600  2.9234545190732772  0.5288366974009373   T   T   T