O Si 
 1.0000000000000000
     7.9508937841980947   -0.0000000000000000   -0.7486715080214170
    -0.0000000000000000    4.9769467516054560    0.0000000000000000
    -8.5938129068220785    0.0000000000000000    5.9395072530286628
 O   Si 
   8   4
Selective dynamics
Cartesian
 -0.0000000000000000  4.5063484476897848  0.0000000000000000   T   T   T
 -4.2969064534110419  2.1044035470163989  2.9697536265143305   T   T   T
 -6.5481585015565100  0.1018821685718437  4.4220940865865135   T   T   T
  5.9052393789325111  0.1018821685718436  0.7687416584207253   T   T   T
 -2.2338576335455680  1.4847016677651275  4.5522788652578416   T   T   T
  1.5909385109215768  1.4847016677651275  0.6385568797493919   T   T   T
  2.4131845509456671  3.9678908348991913  0.7948340299653834   T   T   T
 -3.0561036735696590  3.9678908348991921  4.3960017150418524   T   T   T
 -2.1639469406996281  0.0295527942140342  5.2289971286886514   T   T   T
  1.5210278180756389  0.0295527942140341 -0.0381613836814185   T   T   T
  2.4414075285974217  2.5418468743367240  1.3687417165863400   T   T   T
 -3.0843266512214167  2.5418468743367240  3.8220940284208984   T   T   T