Ar 
 1.0000000000000000
     3.7235044060918598    0.0000000000000000    0.0000000000000000
    -1.8617522030459299    3.2246494067788376    0.0000000000000000
    -0.0000000000000000    0.0000000000000000    6.0837218614677733
 Ar 
   2
Selective dynamics
Cartesian
 -0.0000000186175225  2.1497662819347236  1.5209304653669433   T   T   T
  1.8617521844284075  1.0748831463417776  4.5627913961008311   T   T   T