C Nb 
 1.0000000000000000
     3.1630599322101802   -0.0000000000000000   -0.0000000000000000
    -1.5815299661050901    2.7392902549867011   -0.0000000000000000
    -0.0000000000000000   -0.0000000000000000    4.2717007831934772
 C   Nb 
   1   2
Selective dynamics
Cartesian
  0.0000000000000000  0.0000000000000000  0.0000000000000000   T   T   T
 -0.0000000000000004  1.8261935033244672  3.5165027320669946   T   T   T
  1.5815299661050906  0.9130967516622338  0.7551980511264826   T   T   T