Na 
 1.0000000000000000
     3.6542743376782947    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.6542743376782947   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.6542743376782947
 Na 
   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.8271371688391476  1.8271371688391476  1.8271371688391476   T   T   T