Nb 
 1.0000000000000000
     4.1574956430200354   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.1574956430200354    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    4.1574956430200354
 Nb 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.0787478215100181  2.0787478215100181   T   T   T
  2.0787478215100181  0.0000000000000000  2.0787478215100181   T   T   T
  2.0787478215100181  2.0787478215100181  0.0000000000000000   T   T   T