Ar 
 1.0000000000000000
     3.7422305532316731    0.0000000000000001    0.0000000000000000
    -1.8711152766158365    3.2408667259169217    0.0000000000000000
     0.0000000000000000   -0.0000000000000000    6.1080790609008622
 Ar 
   2
Selective dynamics
Cartesian
 -0.0000000187111529  2.1605778280808376  1.5270197652252158   T   T   T
  1.8711152579046841  1.0802889194418641  4.5810592956756473   T   T   T