Si 
 1.0000000000000000
    14.1421356237219058   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000   14.1421356237219058    0.0000000000000003
    -0.0000000000000000    0.0000000000000003   14.1421356237219058
 Si 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  7.0710678118609538  7.0710678118609547   T   T   T
  7.0710678118609538  0.0000000000000002  7.0710678118609538   T   T   T
  7.0710678118609538  7.0710678118609538  0.0000000000000002   T   T   T