O Si 
 1.0000000000000000
     3.2158962701586953   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.2158962701586931    0.0000000000000000
    -0.0000000000000000    0.0000000000000001    3.8233467789302686
 O   Si 
   8   4
Selective dynamics
Cartesian
  0.3897915882198111  1.1638280448573353  2.2503336205577575   T   T   T
  2.8261046819388862  2.0520682253013547  4.1620070100228910   T   T   T
  0.4441200902220104  1.9977397232991549  3.2061703152903256   T   T   T
  2.7717761799366865  1.2181565468595383  5.1178437047554608   T   T   T
  1.2181565468595368  2.7717761799366833 -1.2944969258251906   T   T   T
  1.9977397232991605  0.4441200902220105  0.6171764636399441   T   T   T
  1.1638280448573379  0.3897915882198106  1.5730131583725100   T   T   T
  2.0520682253013591  2.8261046819388809 -0.3386602310926252   T   T   T
  0.3680290262486107  0.3680290262486096  0.0000000000000000   T   T   T
  2.8478672439100858  2.8478672439100814  1.9116733894651352   T   T   T
  1.2399191088307369  1.9759771613279560  0.9558366947325676   T   T   T
  1.9759771613279609  1.2399191088307373  2.8675100841977010   T   T   T