Nb 
 1.0000000000000000
     4.1658555684813967    0.0000000000000000    0.0000000000000000
     0.0000000000000000    4.1658555684813967    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    4.1658555684813967
 Nb 
   4
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
  0.0000000000000000  2.0829277842406984  2.0829277842406984   T   T   T
  2.0829277842406984  0.0000000000000000  2.0829277842406984   T   T   T
  2.0829277842406984  2.0829277842406984  0.0000000000000000   T   T   T