Hexafluoro complex of rutherfordium in mixed HF/HNO3 solutions

A. Toyoshima; H. Haba; K. Tsukada; M. Asai; K. Akiyama; S. Goto; Y. Ishii; I. Nishinaka; T. K. Sato; Yuichi Nagame; Wataru Sato; Yuuki Tani; H. Hasegawa; K. Matsuo; D. Saika; Y. Kitamoto; A. Shinohara; M. Ito; J. Saito; H. Kudo; A. Yokoyama; M. Sakama; K. Sueki; Y. Oura; H. Nakahara; M. Schädel; W. Brüchle; J. V. Kratz

doi:10.1524/ract.2008.1474

Published by De Gruyter (O) September 25, 2009

Hexafluoro complex of rutherfordium in mixed HF/HNO₃ solutions

A. Toyoshima , H. Haba , K. Tsukada , M. Asai , K. Akiyama , S. Goto , Y. Ishii , I. Nishinaka , T. K. Sato , Yuichi Nagame , Wataru Sato , Yuuki Tani , H. Hasegawa , K. Matsuo , D. Saika , Y. Kitamoto , A. Shinohara , M. Ito , J. Saito , H. Kudo , A. Yokoyama , M. Sakama , K. Sueki , Y. Oura , H. Nakahara , M. Schädel , W. Brüchle and J. V. Kratz

From the journal rca - Radiochimica Acta

https://doi.org/10.1524/ract.2008.1474

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Summary

Formation of anionic fluoride-complexes of element 104, rutherfordium, produced in the ²⁴⁸Cm(¹⁸O,5n) ²⁶¹Rf reaction was studied by anion-exchange on an atom-at-a-time scale. It was found that the hexafluoro complex of Rf, [RfF₆]²⁻, was formed in the studied fluoride ion concentrations of 0.0005–0.013 M. Formation of [RfF₆]²⁻ was significantly different from that of the homologues Zr and Hf, [ZrF₆]²⁻ and [HfF₆]²⁻; the evaluated formation constant of [RfF₆]²⁻ is at least one-order of magnitude smaller than those of [ZrF₆]²⁻ and [HfF₆]²⁻.

Keywords: Rutherfordium (Rf); Zirconium (Zr); Hafnium (Hf); Atom-at-a-time chemistry; Hexafluoro complex; Anion-exchange chromatography

Received: 2007-June-15

Accepted: 2007-October-12

Published Online: 2009-09-25

Published in Print: 2008-03

Hexafluoro complex of rutherfordium in mixed HF/HNO₃ solutions

Summary

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