Nb 
 1.0000000000000000
     3.3024435346962320   -0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.3024435346962320   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.3024435346962320
 Nb 
   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.6512217673481162  1.6512217673481162  1.6512217673481162   T   T   T