Relativistic coupled cluster calculations of spectroscopic and chemical   properties for element 120
  The coupled cluster calculations with accounting for relativistic effects to study spectroscopic and chemical properties of element 120 (E120) are performed. Similar calculations for Ba are also done and they are in a good agreement with the experimental data. Dissociation energies of diatomic X-H and X-Au molecules, where X=E120, Ba, are calculated; for E120 they are found to be $1.5\div2$ times smaller than those for Ba. 
L.V. Skripnikov and N.S. Mosyagin and A.V. Titov
physics.chem-ph physics.atom-ph