Si 
 1.0000000000000000
     2.6715972468510691   -0.0000000000000000    0.0000000000000000
    -1.3357986234255346    2.3136710844535933   -0.0000000000000000
     0.0000000000000000    0.0000000000000000    2.6355419057143559
 Si 
   1
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T