Si 
 1.0000000000000000
     2.5784705090564741   -0.0000000000000000    0.0000000000000000
    -1.2892352545282371    2.2330209637519012    0.0000000000000000
     0.0000000000000000    0.0000000000000000    4.2589131031817073
 Si 
   2
Selective dynamics
Cartesian
 -0.0000000128923527  1.4886806499446712  1.0647282757954268   T   T   T
  1.2892352416358848  0.7443403286940372  3.1941848273862807   T   T   T