Si 
 1.0000000000000000
     3.8869547243310443    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.8869547243310443    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.8869547243310443
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  1.9434773621655217  1.9434773621655217   T   T   T
  1.9434773621655217  0.0000000000000000  1.9434773621655217   T   T   T
  1.9434773621655217  1.9434773621655217  0.0000000000000000   T   T   T