元素104的化物复合物,鲁瑟福迪
Hiromitsu Haba1, Kazuaki Tsukada, Masato Asai
1Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan. haba@riken.jp
Journal of the American Chemical Society
|April 22, 2004
概括
由于相对论效应,Rutherfordium化物复合不同于更轻的同类. 这项研究使用了原子一次性离子交换染色学来研究鲁瑟福迪.
科学领域:
- 核化学 核化学 核化学
- 放射化学 放射化学是指辐射化学.
- 无机化学 无机化学
背景情况:
- 鲁瑟福第 (Rf),元素104,是一种超重元素,其化学性质预计会受到相对论效应的显著影响.
- 了解Rf的溶液化学,特别是其复杂化行为,对于其识别和表征至关重要.
研究的目的:
- 使用离子交换染色学研究鲁瑟福第 (Rf) 的化物复合.
- 为了比较Rf的染色学行为与更轻的4组元素 (,和哈夫尼,哈夫尼) 在酸溶液中.
- 探索相对论效应对Rf的化学性质的影响.
主要方法:
- 鲁瑟福第-261 (261Rf) 是通过248Cm(18O,5n) 261Rf核反应产生的.
- 原子一次性离子交换色谱被用来研究261Rf的吸附行为.
- 染色分离是在多种度的酸 (1.913.9M) 中进行的.
- 在相同的条件下使用 (Zr) 和 (Hf) 进行了比较研究.
主要成果:
- 鲁瑟福第 (Rf) 在酸中的离子交换树脂上的吸附行为与 (Zr) 和 (Hf) 的吸附行为不同.
- 与其较轻的同类物,Zr和Hf相比,Rf的化物复杂化显著不同.
- 观察到的差异表明元素104.4的简单周期趋势的偏差.
结论:
- 鲁瑟福第 (Rf) 的明显化物复合表明相对论效应在它的化学结构中发挥了重要作用.
- 阴离子交换色谱是一种可行的技术,用于研究像Rf.这样的超重元素的溶液化学.
- 需要进一步进行理论和实验研究,以充分阐明相对论对Rf和其他超重元素的影响.
相关概念视频
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Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
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A chemical symbol is an abbreviation that is used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. We use the same symbol to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common name of the element; others are abbreviations of the name in another language. Most symbols have one or two letters, but three-letter symbols have been used...
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