Fe Nb 
 1.0000000000000000
     3.7473153408389037    0.0000000000000000    0.0000000000000000
     0.0000000000000000    3.7473153408389037   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    3.7473153408389037
 Fe  Nb 
   3   1
Selective dynamics
Cartesian
  0.0000000000000000  1.8736576704194523  1.8736576704194523   T   T   T
  1.8736576704194523 -0.0000000000000000  1.8736576704194523   T   T   T
  1.8736576704194523  1.8736576704194523 -0.0000000000000000   T   T   T
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T