Si 
 1.0000000000000000
     4.7706652871256283    0.0000000000000000   -0.0000000000000000
    -0.0000000000000000    4.7706652871256274    0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    2.8415166646198124
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.3853326435628137  2.3853326435628133  1.4207583323099062   T   T   T
  0.0000000000000000  2.3853326435628133  0.7103791661549531   T   T   T
  2.3853326435628137 -0.0000000000000000  2.1311374984648599   T   T   T