O Si 
 1.0000000000000000
     7.0606698214496930    0.0000000000000000    0.0000000000000000
     0.0000000000000000    7.0606698214496930    0.0000000000000000
     0.0000000000000000    0.0000000000000000    7.0606698214496930
 O   Si 
  16   8
Selective dynamics
Cartesian
  1.0976528206993974  1.0976528206993974  1.0976528206993978   T   T   T
  2.4326820900254491  5.9630170007502947  4.6279877314242466   T   T   T
  5.9630170007502947  4.6279877314242457  2.4326820900254491   T   T   T
  4.6279877314242457  2.4326820900254491  5.9630170007502947   T   T   T
  4.5004224846500032  4.6883889555597067  0.2594588458920602   T   T   T
  6.0905822475245390  2.3722808658899885  3.7897937566169060   T   T   T
  2.5602473367996903  1.1580540448348577  3.2708760648327888   T   T   T
  0.9700875739251570  5.9026157766148355  6.8012109755576322   T   T   T
  0.2594588458920602  4.5004224846500032  4.6883889555597067   T   T   T
  3.7897937566169060  6.0905822475245373  2.3722808658899890   T   T   T
  3.2708760648327888  2.5602473367996903  1.1580540448348575   T   T   T
  6.8012109755576322  0.9700875739251569  5.9026157766148355   T   T   T
  4.6883889555597076  0.2594588458920603  4.5004224846500032   T   T   T
  2.3722808658899885  3.7897937566169060  6.0905822475245373   T   T   T
  1.1580540448348575  3.2708760648327888  2.5602473367996903   T   T   T
  5.9026157766148346  6.8012109755576322  0.9700875739251569   T   T   T
  2.0290880435854421  2.0290880435854421  2.0290880435854421   T   T   T
  1.5012468671394059  5.0315817778642513  5.5594229543102891   T   T   T
  5.0315817778642522  5.5594229543102891  1.5012468671394059   T   T   T
  5.5594229543102891  1.5012468671394059  5.0315817778642513   T   T   T
  0.1692702654483428  0.1692702654483429  0.1692702654483428   T   T   T
  3.3610646452765041  6.8913995560013532  3.6996051761731907   T   T   T
  6.8913995560013532  3.6996051761731907  3.3610646452765041   T   T   T
  3.6996051761731907  3.3610646452765041  6.8913995560013532   T   T   T