In the last decade we have seen the production of new elements for the Periodic Table up to nuclear charge 118. How far can we go? Where does the Period Table end? Can we do chemistry with such exotic elements? What is the chemical and physical behavior of these exotic elements? How can we describe them by quantum chemical methods?It is well known that relativistic effects dominate the chemistry of the trans-actinides, and unusual properties are often predicted due to strong scalar relativistic or spin-orbit effects. For example, both Cp (Z=112) and Fl (Z=114) are predicted to be more chemically inert compared to their lighter congeners, the former due to direct relativistic 7s stabilization and the latter due to strong spin-orbit effects, which make Fl a closed-shell atom. Recent solid-state calculations predict Cp to be a semi-conductor, and Fl to be a metal. In order to accurately predict the chemistry of superheavy elements accurate quantum chemical methods are required. In addition, for the accurate prediction of properties with �chemical accuracy� (~1 kJ/mol) quantum electro-dynamic effects at lowest order have to be accounted for, especially for the s-block elements. Such predictions are important for the design of future atom-at-a-time experiments. This talks reviews current attempts on both the experimental and theoretical side for the chemical study of such exotic elements.

Accurate relativistic electronic structure treatment of superheavy elements with nuclear charge Z= 111-120 and beyond

247th National Meeting (2014)

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