Pb 
 1.0000000000000000
     4.9054696355762104    0.0000000000000000    0.0000000000000000
    -0.0000000000000001    4.9054696355762104    0.0000000000000000
    -0.0000000000000001   -0.0000000000000002    4.9054696355762104
 Pb 
   4
Cartesian
  4.9054696256661705  0.0000000000000000  0.0000000000000000
  4.9054696256661705  2.4527348177881052  2.4527348177881052
  2.4527348078780609 -0.0000000000000000  2.4527348177881052
  2.4527348078780609  2.4527348177881052  0.0000000000000000