O Si 
 1.0000000000000000
     6.4423197141598347   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.4423197141598250    0.0000000000000000
     0.0000000000000000    0.0000000000000000    8.5645680952872656
 O   Si 
  16   8
Selective dynamics
Cartesian
  2.2925496863522667  2.2925496863522636  2.1411420238218151   T   T   T
  4.1497700278075698  4.1497700278075653  2.1411420238218151   T   T   T
  2.2925496863522667  4.1497700278075653  6.4234260714654461   T   T   T
  4.1497700278075698  2.2925496863522636  6.4234260714654461   T   T   T
 -0.0000000000000009  3.2211598570799138  5.4855448463826644   T   T   T
  3.2211598570799174 -0.0000000000000009  3.0790232489046003   T   T   T
 -0.0000000000000009  3.2211598570799138  1.2032607987390302   T   T   T
  3.2211598570799174 -0.0000000000000009  7.3613072965482340   T   T   T
  1.9718293871309440  2.0859520967996481  8.2059304190440603   T   T   T
  4.4704903270288900  4.3563676173601786  8.2059304190440603   T   T   T
  2.0859520967996508  4.4704903270288803  0.3586376762431929   T   T   T
  4.3563676173601840  1.9718293871309442  0.3586376762431929   T   T   T
  1.9718293871309440  4.3563676173601786  3.9236463714004390   T   T   T
  4.4704903270288900  2.0859520967996481  3.9236463714004390   T   T   T
  2.0859520967996508  1.9718293871309442  4.6409217238868230   T   T   T
  4.3563676173601840  4.4704903270288803  4.6409217238868248   T   T   T
  3.4012892277464086  1.5259283885572574  7.7025913130350032   T   T   T
  3.0410304864134283  4.9163913256025662  7.7025913130350032   T   T   T
  1.5259283885572599  3.0410304864134230  0.8619767822522693   T   T   T
  4.9163913256025751  3.4012892277464024  0.8619767822522693   T   T   T
  3.4012892277464086  4.9163913256025662  3.4203072653913611   T   T   T
  3.0410304864134283  1.5259283885572574  3.4203072653913620   T   T   T
  1.5259283885572599  3.4012892277464024  5.1442608298959005   T   T   T
  4.9163913256025751  3.0410304864134230  5.1442608298959005   T   T   T