Ar 
 1.0000000000000000
     3.7210583554117487    0.0000000000000001   -0.0000000000000000
    -1.8605291777058743    3.2225310647509184    0.0000000000000000
     0.0000000000000000    0.0000000000000000    6.0719093069170107
 Ar 
   2
Selective dynamics
Cartesian
 -0.0000000186052924  2.1483540539090491  1.5179773267292527   T   T   T
  1.8605291591005821  1.0741770323254101  4.5539319801877598   T   T   T