In the collaboration of RI Applications Team from RIKEN (Japan) and the Nuclear Chemistry Group from IMP (China), the short-lived Re carbonyl complexes were synthesized and investigated. As the lighter homologs of superheavy element Bh, Re belongs to period 6, group 7 of the periodic table. Short-lived Re isotopes with half-lives of several minutes were produced in the reactions of natGd(23Na7+, xn) 172?177Re at Nishina center of RIKEN.
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