Si 
 1.0000000000000000
     5.1487710799197188    0.0000000000000000    0.0000000000000000
     0.0000000000000000    5.1487710799197206    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    2.4846123554073176
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  2.5743855399598594  2.5743855399598603  1.2423061777036590   T   T   T
 -0.0000000000000000  2.5743855399598603  0.6211530888518295   T   T   T
  2.5743855399598594  0.0000000000000000  1.8634592665554888   T   T   T