O Si 
 1.0000000000000000
     5.4594013967312325   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    5.4594013967312316    0.0000000000000000
     0.0000000000000000    0.0000000000000000   16.3303234397851433
 O   Si 
  16   8
Selective dynamics
Cartesian
  2.7297006983656149 -0.2035850450978074 -0.0000000000000000   T   T   T
  2.7297006983656149  5.6629864418290534  8.1651617198925734   T   T   T
  5.6629864418290428  2.7297006983656162 12.2477425798388584   T   T   T
 -0.2035850450978080  2.7297006983656162  4.0825808599462867   T   T   T
  1.6262590041018474  1.6262590041018476 10.2064521498657186   T   T   T
  3.8331423926293766  3.8331423926293788  2.0412904299731434   T   T   T
  3.8331423926293766  1.6262590041018476  6.1238712899194292   T   T   T
  1.6262590041018474  3.8331423926293788 14.2890330098119982   T   T   T
  3.8466993816529751  0.9561330627047664  2.1086427916019272   T   T   T
  1.6127020150782538  4.5032683340264743 10.2738045114945127   T   T   T
  4.5032683340264725  3.8466993816529844 14.3563853714407834   T   T   T
  0.9561330627047653  1.6127020150782554  6.1912236515482144   T   T   T
  1.6127020150782538  0.9561330627047668 14.2216806481832094   T   T   T
  3.8466993816529755  4.5032683340264761  6.0565189282906378   T   T   T
  0.9561330627047653  3.8466993816529840  1.9739380683443544   T   T   T
  4.5032683340264725  1.6127020150782554 10.1390997882369280   T   T   T
  3.2186524082493526 -0.3155205242132165  1.4795758324244239   T   T   T
  2.2407489884818781  5.7749219209444487  9.6447375523170056   T   T   T
  5.7749219209444371  3.2186524082493557 13.7273184122632852   T   T   T
 -0.3155205242132166  2.2407489884818794  5.5621566923707011   T   T   T
  2.2407489884818772 -0.3155205242132164 14.8507476073607059   T   T   T
  3.2186524082493522  5.7749219209444487  6.6855858874681413   T   T   T
 -0.3155205242132166  3.2186524082493553  2.6030050275218621   T   T   T
  5.7749219209444371  2.2407489884818803 10.7681667474144067   T   T   T