Fluoride Complexation of Element 104, Rutherfordium

摘要

Fluoride complexation of element 104, rutherfordium (Rf), produced in the ~(248)Cm(~(18)O,5n)~(261)Rf reaction has been studied by anion-exchange chromatography on an atom-at-a-time scale. The anion-exchange chromatographic behavior of Rf was investigated in 1.9-13.9 M hydrofluoric acid together with those of the group-4 elements Zr and Hf produced in the ~(18)O-induced reactions on Ge and Gd targets, respectively. It was found that the adsorption behavior of Rf on anion-exchange resin is quite different from those of Zr and Hf, suggesting the influence of relativistic effects on the fluoride complexation of Rf.