Sn 
 1.0000000000000000
     3.8466151451952180    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.8466151451952175    0.0000000000000000
     0.0000000000000000    0.0000000000000000    3.8466151451952180
 Sn 
   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.9233075725976090  1.9233075725976090  1.9233075725976090   T   T   T