O Si 
 1.0000000000000000
     6.7982416086870456    0.0000000000000000    0.0000000000000000
    -0.0000000000000000    6.7982416086870447    0.0000000000000000
     0.0000000000000000    0.0000000000000000    7.1852483608512161
 O   Si 
  16   8
Selective dynamics
Cartesian
  5.6472394162846511  4.5501229967459134  1.7963120902128042   T   T   T
  1.1510021924023901  2.2481186119411301  1.7963120902128042   T   T   T
  4.5501229967459116  1.1510021924023894  5.3889362706384114   T   T   T
  2.2481186119411309  5.6472394162846538  5.3889362706384114   T   T   T
  0.0000000000000000  3.3991208043435215  6.9526986574756240   T   T   T
  3.3991208043435215  0.0000000000000000  0.2325497033755950   T   T   T
  3.3991208043435215  0.0000000000000000  3.3600744770500137   T   T   T
 -0.0000000000000000  3.3991208043435215  3.8251738838012042   T   T   T
  4.6124940277082658  2.3545379636170440  0.5953278313076917   T   T   T
  2.1857475809787723  4.4437036450699985  0.5953278313076917   T   T   T
  2.3545379636170427  2.1857475809787736  6.5899205295435257   T   T   T
  4.4437036450699967  4.6124940277082667  6.5899205295435257   T   T   T
  1.2133732233647476  1.0445828407264766  4.1879520117332989   T   T   T
  5.5848683853222960  5.7536587679605624  4.1879520117332989   T   T   T
  5.7536587679605633  1.2133732233647470  2.9972963491179159   T   T   T
  1.0445828407264763  5.5848683853222960  2.9972963491179159   T   T   T
  5.3694848263939852  3.7587412695701183  0.4056789332245964   T   T   T
  1.4287567822930549  3.0395003391169246  0.4056789332245963   T   T   T
  3.7587412695701174  1.4287567822930545  6.7795694276266172   T   T   T
  3.0395003391169224  5.3694848263939896  6.7795694276266172   T   T   T
  1.9703640220504677  6.4386211434604466  3.9983031136502043   T   T   T
  4.8278775866365793  0.3596204652265991  3.9983031136502043   T   T   T
  0.3596204652265988  1.9703640220504679  3.1869452472010131   T   T   T
  6.4386211434604448  4.8278775866365793  3.1869452472010131   T   T   T