Valence States Of Cyclotron-Produced Thallium

Unexpected behavior of thallium atoms, produced in a reaction of gold target with accelerated He-3 ions, in liquid-liquid extraction with [C(n)mim][NTf2] ionic liquids (n = 2, 4, 6-8, 10) was investigated. Contrary to the general expectations, a significant proportion of thallium produced in the nuclear reaction was found in a non-monovalent state upon dissolution of the KCl aerosol collector. This finding is critical for the design and evaluation of the forthcoming chemistry experiments with the superheavy element nihonium.