O Si 
 1.0000000000000000
     4.9304982235704689    0.0000000000000000    0.2160773249077491
     0.0000000000000000    5.7321193664539187    0.0000000000000000
     1.9335262207314949    0.0000000000000000    5.4444030212323318
 O   Si 
   8   4
Selective dynamics
Cartesian
  2.7822706614056067  0.0000000000000000  4.2314419740721778   T   T   T
  5.2653907158660997  0.0000000000000000  3.0976302752084361   T   T   T
  4.9977843200658008  2.8660596832269594  1.5936236233938981   T   T   T
  3.2122287362353013  2.8660596832269594  4.2311676723137799   T   T   T
  3.1199355929184591  1.3776253811324848  2.1944134225474277   T   T   T
  3.1199355929184591  4.3544939853214331  2.1944134225474277   T   T   T
  5.8991565826900878  4.2217046537425196  5.0679087023491771   T   T   T
  5.8991565826900878  1.5104147127113985  5.0679087023491771   T   T   T
  6.0779013161252724  0.0000000000000000  4.4781898885885720   T   T   T
  3.6754864421992659  0.0000000000000000  2.8865952185005304   T   T   T
  1.8399966684519677  2.8660596832269594  5.1639166989283298   T   T   T
  3.6416239172879674  2.8660596832269594  2.6057100161824955   T   T   T