C Si 
 1.0000000000000000
     3.5261405893544211    0.0000000000000000    0.0000000000000000
    -1.7630702946772105    3.0537273276963601    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    5.7557811811971824
 C   Si 
   2   2
Selective dynamics
Cartesian
 -0.0000000176307038  2.0358182286433304  2.8804257269158011   T   T   T
  1.7630702770465077  1.0179091194112109  0.0025351363172083   T   T   T
 -0.0000000176307038  2.0358182286433304  5.0395291784115228   T   T   T
  1.7630702770465077  1.0179091194112109  2.1616385878129307   T   T   T