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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Fluorido Complex Formation of Element 104, Rutherfordium (Rf)
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Fluorido Complex Formation of Element 104, Rutherfordium (Rf)

机译：Fluorido复杂形成元素104，Rutherfordium（RF）

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摘要

We have investigated the cation-exchange behavior of element 104, rutherfordium (Rf), together with its lighter group-4 homologs Zr and Hf, and the tetravalent pseudo-homolog Th in HF/HNO3 mixed solution. The results, obtained on a one-atom-at-a-time scale, demonstrate that distribution coefficients (K-d) of RI in HF/0.10 M HNO3 decrease with increasing concentration of the fluoride ion [F-]. This resembles the behavior of the homologs, indicating the consecutive formation of fluorido complexes of Rf. We also measured the Kd values of Rf and the homologs as a function of the hydrogen ion concentration [H+] in the range of [F-] = 5.29 x 10(-7)-3.17 x 10(-6) M. The log K-d values decrease linearly with an increase of log[H+] with slopes between -2.1 and -2.5. This indicates that these elements are likely to form the same chemical compounds: mixture of [MF](3+) and [MF2](2+) (M = Rf, Zr, Hf, and Th) in the studied solution. It is also ascertained that the fluorido complex formation of Rf is significantly weaker than that of Zr and Hf, but it is stronger than that of Th.
机译：我们已经研究了元素104，Rutherfordium（RF）的阳离子交换行为，以及其较轻的组-4同源物Zr和HF，以及HF / HNO3混合溶液中的四价伪同源物。在一次原子 - 一次性范围内获得的结果证明了HF / 0.10M HNO3中RI的分布系数（K-D）随着氟离子[F-]的浓度的增加而降低。这类似于同源物的行为，表明RF的荧光复合物的连续形成。我们还测量RF和同源物的KD值作为[F-] = 5.29×10（-7）-3.17×10（-6）M.的氢离子浓度[H +]的函数。 Kd值随着-2.1和-2.5之间的斜率的增加而导入线性降低。这表明这些元素可能形成所研究的溶液中[MF]（3+）和[MF 2]（2+）（2+）（2+）（M = RF，Zr，HF和Th）的混合物。还确定RF的荧光络合物形成显着弱于Zr和Hf，但它比Th的更强。

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