Si 
 1.0000000000000000
     5.1487710799196620    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    5.1487710799196629    0.0000000000000000
     0.0000000000000000    0.0000000000000000    2.4846123554073181
 Si 
   4
Selective dynamics
Cartesian
 -0.0000000000000000 -0.0000000000000000  0.0000000000000000   T   T   T
  2.5743855399598310  2.5743855399598319  1.2423061777036588   T   T   T
  0.0000000000000000  2.5743855399598319  0.6211530888518294   T   T   T
  2.5743855399598310  0.0000000000000000  1.8634592665554885   T   T   T