Si 
 1.0000000000000000
    23.0350833245568616   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000   23.0350833245568616    0.0000000000000004
     0.0000000000000000    0.0000000000000002   19.7829624014982279
 Si 
   8
Selective dynamics
Cartesian
 16.5175416620780950 16.5175416620781057  0.0000000000000003   T   T   T
  6.5175416624787568  6.5175416624787523  0.0000000000000001   T   T   T
  6.5175416624787577 16.5175416620781057  0.0000000000000003   T   T   T
 16.5175416620780950  6.5175416624787488  0.0000000000000001   T   T   T
  4.9999999997996749  4.9999999997996687  9.8914812007491228   T   T   T
 18.0350833247571884 18.0350833247571884  9.8914812007491246   T   T   T
 18.0350833247571884  4.9999999997996687  9.8914812007491228   T   T   T
  4.9999999997996731 18.0350833247571884  9.8914812007491246   T   T   T