Si 
 1.0000000000000000
     3.8495860154880810    0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.8495860154880810   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    3.8495860154880810
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  1.9247930077440407  1.9247930077440407   T   T   T
  1.9247930077440407 -0.0000000000000000  1.9247930077440407   T   T   T
  1.9247930077440407  1.9247930077440407 -0.0000000000000000   T   T   T