Nb 
 1.0000000000000000
     4.1051451265634409   -0.0000000000000000    0.0000000000000000
    -0.0000000000000000    4.1051451265634409    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    4.1051451265634409
 Nb 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000000  2.0525725632817204  2.0525725632817204   T   T   T
  2.0525725632817204  0.0000000000000000  2.0525725632817204   T   T   T
  2.0525725632817204  2.0525725632817204  0.0000000000000000   T   T   T