Si 
 1.0000000000000000
     2.6971069145142774   -0.0000000000000000   -0.0000000000000000
    -1.3485534572571387    2.3357631046920289    0.0000000000000000
     0.0000000000000000    0.0000000000000000    2.6146745546251506
 Si 
   1
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T