Si 
 1.0000000000000000
     4.9532024154286010    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    4.9532024154286001   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    2.7163626895309112
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000 -0.0000000000000000   T   T   T
  2.4766012077143005  2.4766012077143000  1.3581813447654556   T   T   T
  0.0000000000000000  2.4766012077143000  0.6790906723827278   T   T   T
  2.4766012077143005 -0.0000000000000000  2.0372720171481831   T   T   T