Aluminium--dysprosium (3/1) | 12004-59-0

• 英文名称: Aluminium--dysprosium (3/1)
• 英文别名: alumane;dysprosium
• CAS: 12004-59-0
• 化学式: Al₃Dy
• 分子量: 243.445
• InChiKey: TZKRUSHGTCJGFH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.55
• 重原子数：
  4
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  氯化镝(III) 、 氢化铝 以 melt 为溶剂， 生成 Aluminium--dysprosium (3/1)
  参考文献：
  名称：

  Electrochemical behaviour of dysprosium in the eutectic LiCl–KCl at W and Al electrodes

  摘要：

  The electrochemical behaviour of DyCl3 was studied in the eutectic LiCl-KCl at different temperatures. The cathodic reaction can be written:Dy(III) + 3e <----> Dy(0)which can be divided in two very close cathodic steps:Dy(III) + 1e <----> Dy(II) and Dy(II) + 2e <----> Dy(0)Transient electrochemical techniques, such as cyclic voltammetry, chronopotentiometry, and chronoamperometry were used in order to study the reaction mechanism and the transport parameters of electroactive species at a tungsten electrode. The results showed that in the eutectic LiCl-KCl, electrocrystallization of dysprosium seems to be the controlling electrochemical step. Chronoamperometric studies indicated instantaneous nucleation of dysprosium with three dimensional growth of the nuclei whatever the applied overpotential.Mass transport towards the electrode is a simple diffusion process, and the diffusion coefficient of the electroactive species, i.e. Dy(III), has been calculated. The validity of the Arrhenius law was also verified by plotting the variation of the logarithm of the diffusion coefficient versus 1/T.In addition, the electrode reactions of the LiCl-KCl-DyCl3 solutions at an Al wire were also investigated by cyclic voltammetry and open circuit chronopotentiometry. The redox potential of the Dy(III)/Dy couple at the Al electrode was observed at more positive potentials values than those at the inert electrode. This potential shift was thermodynamically analyzed by a lowering of activity of Dy in the metal phase due to the formation of intermetallic compounds. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.electacta.2004.09.013

文献信息

• The TDPAC study of the hyperfine interactions at 111Cd nuclei in RAl3 compounds synthesized under high pressure
  作者：A.V. Tsvyashchenko、L.N. Fomicheva、V.B. Brudanin、O.I. Kochetov、A.V. Salamatin、A. Velichkov、M. Wiertel、M. Budzynski、A.A. Sorokin、G.K. Ryasny、B.A. Komissarova

  DOI：10.1016/j.ssc.2007.02.027

  日期：2007.6

  Abstract The time-differential perturbed angular correlations technique (TDPAC) has been employed for measuring the parameters of hyperfine interactions in earlier known RAl 3 compounds, synthesized at high pressure (8 GPa) and high temperature, where R = La, Ce, Sm, Gd, Tb, Dy, Ho, Er, Yb and Lu. The 111 Cd( 111 In) radioactive atom was used as a probe nucleus. The X-ray method has revealed that with

  摘要 时差微扰角相关技术 (TDPAC) 已被用于测量在高压 (8 GPa) 和高温下合成的早期已知 RAl 3 化合物中超精细相互作用的参数，其中 R = La、Ce、Sm、 Gd、Tb、Dy、Ho、Er、Yb 和 Lu。111 Cd( 111 In) 放射性原子被用作探针核。X射线法表明，随着稀土元素R原子序数的增加，得到的RAl 3 高压相分别结晶成正交、六方和立方结构。已经发现，在含有R=La、Ce、Sm和Gd的化合物中，观察到与早期已知结构类型的偏差和新结构类型的形成，这与所述化合物的化学计量组成的变化有关。
• Magnetic properties of U1−xGdxAl3 and U1−xDyxAl3 systems
  作者：P. Lucaci、E. Burzo、I. Lupsa

  DOI：10.1016/0925-8388(96)02289-x

  日期：1996.5

  Magnetic measurements were performed on U(1-x)R(x)Al(3) compounds with R = Gd and Dy in the temperature range 400-600 K and fields up to 7 T. UAl3 shows a spin fluctuation-type behaviour. The effective uranium moment, determined in the high temperature range, is 3.62 mu(B). When replacing U by Gd or Dy, at low temperatures, a mictomagnetic or antiferromagnetic-type ordering is evidenced. Above the magnetic transition temperatures the susceptibilities follow a Curie-Weiss-type behaviour. The effective uranium moments decrease when the rare earth content is increasing. This behaviour is attributed to gradual quenching of spin fluctuations.