Nb 
 1.0000000000000000
     3.2948399150577226    0.0000000000000000   -0.0000000000000000
     0.0000000000000000    3.2948399150577226   -0.0000000000000000
     0.0000000000000000   -0.0000000000000000    3.2948399150577226
 Nb 
   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  1.6474199575288613  1.6474199575288613  1.6474199575288613   T   T   T