Si 
 1.0000000000000000
     2.7559337208301997    0.0000000000000000    0.0000000000000000
    -1.3779668604150999    2.3867086133851241    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.5004373660405594
 Si 
   2
Selective dynamics
Cartesian
 -0.0000000137796688  1.5911390835457777  1.1251093415101399   T   T   T
  1.3779668466354316  0.7955695457507368  3.3753280245304205   T   T   T