Copper--holmium (2/1) | 60861-99-6

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间过渡金属化合物
• 英文名称: Copper--holmium (2/1)
• 英文别名: copper;holmium
• CAS: 60861-99-6
• 化学式: Cu₂Ho
• 分子量: 292.022
• InChiKey: CVOREYHYBWTASQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  3
• 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

• 作为反应物：
  描述：

  Copper--holmium (2/1) 、 氢气 以 neat (no solvent, solid phase) 为溶剂， 生成
  参考文献：
  名称：

  Hydrogen induced structural and magnetic transformations in magnetic regenerator materials ErNin (n=1, 2) and HoCu2

  摘要：

  The effect of hydrogenation on the structures and magnetic properties of magnetic regenerators HoCu2 (CeCu2-type), ErNi2 (MgCu2-type) and ErNi (FeB-type) has been investigated. All these compounds can form crystalline hydrides which remain in the structure of the original compound. In the case of ErNi2, hydrogenation induces volume expansion up to 13% compared with the parent compound. The magnetic moment and the Curie temperature of the crystalline hydrides decreases as the hydrogen content increases. In the case of ErNi and HoCu2, there is a little change in the lattice parameters and magnetic properties of the crystalline hydrides compared with original compounds. Amorphous hydrides are also observed after the hydrogenation of ErNi2 and HoCu2 compounds. (C) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jmmm.2006.08.034
• 作为产物：
  描述：

  氢化钬 、 铜 以 melt 为溶剂， 生成 Copper--holmium (2/1)
  参考文献：
  名称：

  快速凝固后在变磁性金属间化合物 RCu2（R = Gd、Tb、Dy、Ho 和 Er）中保持大的低温磁热效应

  摘要：

  摘要 在这项工作中，研究了熔纺 RCu2（R = Gd、Tb、Dy、Ho 和 Er）化合物的磁性和磁热特性。熔纺样品形成了与弧熔样品相同的正交晶体结构（空间群 Imma，编号 74），但具有晶体结构和微米级晶粒的发展。RCu2 (R = Gd、Tb、Dy、Ho 和 Er) 的熔纺带分别在 43 K、51 K、28 K、10 K 和 11 K (TN) 处呈反铁磁性。订购温度与电弧熔化样品的订购温度几乎相同。RCu2 化合物在 TN 以下显示一个或多个场致跃迁。所以，当磁场变化大于超磁临界场时，在这些化合物中观察到正常的磁热效应，而在较小的场变化时观察到逆磁热效应。微粒似乎没有抹掉变磁转变。等温磁熵变的最大值ΔSmmax约为-2.1 Jkg-1K-1、-5.5 Jkg-1K-1、-5.2 Jkg-1K-1、-17.2 Jkg-1K-1和-11.7 Jkg-1K-对于 50 kOe 场变化的熔纺

  DOI：

  10.1016/j.jallcom.2019.152659

文献信息

• Specific heat and thermal expansion in the heavy RECu 2 compounds
  作者：Nguyen Hoang Luong、J.J.M. Franse、Than Duc Hien

  DOI：10.1016/0304-8853(85)90176-3

  日期：1985.6
• Neutron diffraction study of the magnetic structure of HoCu2
  作者：Z. Smetana、V. Šíma、B. Lebech

  DOI：10.1016/0304-8853(86)90023-5

  日期：1986.5
• Magnetic properties of RCu2 (R = Dy, Ho, Er) and DyxY1−xCu2 compounds
  作者：T.D. Hien、N.H. Luong、N.H. Duc、N.P. Thuy、P.H. Frings、J.J.M. Franse

  DOI：10.1016/0304-8853(83)90234-2

  日期：1983.2
• Interaction of hydrogen with RECu2 and RE(Cu,Ni)2 intermetallic compounds (RE=Y, Pr, Dy, Ho)
  作者：I.Yu. Zavaliy、R. C̆erný、V.N. Verbetsky、R.V. Denys、A.B. Riabov

  DOI：10.1016/s0925-8388(03)00067-7

  日期：2003.8

  Hydrogenation of RECu2 (RE=Dy, Ho, Y) at room temperature and pressures of 100-1500-bar H, has not resulted in the formation of ternary hydrides. The interaction of hydrogen with Pr(Cu1-xNix)(2) (x=0, 0.1, 0.17, 0.25, 0.32) at room temperature and pressure of 25 bar resulted in the formation of Pr(Cu1-xNix)(2)H-similar to3 hydrides. It was found that the PrCu2H3 and Pr(Cu0.9Ni0.1)(2)H-2.9 hydrides are poorly crystallized, but that an increase of the Ni-content leads to improved crystallinity of the hydrides. The hydrides Pr(Cu0.75Ni0.25)(2)H-similar to3 and Pr(Cu0.68Ni0.32)(2)H-similar to3, preserve, shortly after the hydrogen absorption, the CeCu2 type structure of their metallic matrix with a hydrogen induced volume expansion up to 28% compared to the parent compound. During long-term exposure in the air they undergo a structural transformation from the orthorhombic CeCu2 to the hexagonal Fe2P type with a hydrogen induced volume expansion up to 16.6% compared to the parent compound. (C) 2003 Elsevier B.V. All rights reserved.
• Neutron diffraction study of the R(Cu1-xNix)2(R = Tb, Ho) system
  作者：Z. Smetana、V. Šíma、E. Gratz、J.J.M. Franse

  DOI：10.1016/0304-8853(83)90612-1

  日期：1983.2