Erbium;nickel | 12192-18-6

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间镧系化合物
• 英文名称: Erbium;nickel
• 英文别名: erbium;nickel
• CAS: 12192-18-6
• 化学式: ErNi₂
• 分子量: 284.64
• InChiKey: RHDXXAYCMIFJMG-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：

  Erbium;nickel 、 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：

  镍 、 氢化铒 以 melt 为溶剂， 生成 Erbium;nickel
  参考文献：
  名称：

  伪二元（Tb，Er）Ni 2固溶体的结构与热磁性能的相关性

  摘要：

  磁性和热力学性质，等温磁熵变ΔS mag在其中，根据the研究了多晶拟二元Tb 1-x Er x Ni 2（x = 0.25、0.5和0.75）固溶体替代ter，导致晶体结构发生变化。发现室温下的Tb 1-x Er x Ni 2固溶体具有C15 Laves相超结构，而不是母体化合物TbNi2和ErNi2典型的C15结构。此外，如磁测量所示，在Tb 1-x Er x Ni 2中用Er代替Tb导致伪二元化合物的有序温度降低，这对应于二阶铁磁体到顺磁体的磁性相变；在x = 0.25和x = 0.75的情况下，减小分别从29.0降低到13.6K。 利用热磁麦克斯韦关系并根据Landau相变理论，分析了等温磁性熵变化，估计该熵可表征拟二元化合物的磁热性质。磁性的Tb 0.75 Er 0.25 Ni 2，Tb 0.5 Er 0.5 Ni 2和Tb 0.25 Er 0.75 Ni 2的最大磁熵变达到6.6（12

  DOI：

  10.1016/j.jallcom.2020.157870

文献信息

• Structural, magnetic and magnetocaloric properties of HoNi2 and ErNi2 compounds ordered at low temperatures
  作者：J. Ćwik、Y. Koshkid'ko、K. Nenkov、E.A. Tereshina、K. Rogacki

  DOI：10.1016/j.jallcom.2017.11.194

  日期：2018.2

  structural, magnetic and magnetocaloric properties of polycrystalline HoNi 2 and ErNi 2 Laves-phase compounds. Powder X-ray diffraction studies at room temperature show that the compounds crystallize in the cubic C15 structure (MgCu 2 type). The magnetic measurements reveal that the second-order magnetic phase transition from ferromagnetic to paramagnetic state appears at T C equal 13.5 K for HoNi 2 and 6

  摘要 在这项工作中，我们报告了多晶 HoNi 2 和 ErNi 2 Laves 相化合物的结构、磁性和磁热特性。室温下的粉末 X 射线衍射研究表明化合物以立方 C15 结构（MgCu 2 型）结晶。磁性测量表明，从铁磁态到顺磁态的二阶磁相变出现在 TC 等于 13.5 K 的 HoNi 2 和 6.5 K 的 ErNi 2 。使用在宽场范围（高达 11 T）上的直接测量以及间接方法，我们发现了以绝热温度变化 ΔT ad 和等温磁熵变化 ΔS 为特征的磁热效应的低场和高场规律杂志
• Hydrogenation-induced changes of the crystal structure and magnetic properties of Er2Ni2Sn
  作者：K. Miliyanchuk、S. Mašková、I. Soroka、L. Havela、R. Gladyshevskii

  DOI：10.1016/j.jallcom.2019.04.222

  日期：2019.7

  intermetallic compound Er 2 Ni 2 Sn (Mo 2 FeB 2 -type structure) was studied. The hydride Er 2 Ni 2 SnH 3.5 was formed under a hydrogen pressure of 65 kPa, after heating up to 373 K. The structure type of the metal sublattice was preserved, but the hydrogenation resulted in anisotropic lattice expansion prevailing in the crystallographic direction c . A lower hydride, Er 2 Ni 2 SnH 3.5- х , was obtained by heating

  摘要 研究了金属间化合物Er 2 Ni 2 Sn（Mo 2 FeB 2 型结构）的氢化。氢化物 Er 2 Ni 2 SnH 3.5 在 65 kPa 的氢压下，加热至 373 K 后形成。金属亚晶格的结构类型得以保留，但氢化导致各向异性晶格膨胀在结晶方向 c 上占优势。通过在动态真空中将 Er 2 Ni 2 SnH 3.5 加热至 573 K 获得低级氢化物 Er 2 Ni 2 SnH 3.5- х 。对于 Er 2 Ni 2 SnH 3.5-х，ab 平面中的晶格膨胀伴随着晶格参数 c 的减小。Er 2 Ni 2 Sn 是 TN = 6.1 K 的反铁磁体，而氢化物 Er 2 Ni 2 SnH 3.5 和 Er 2 Ni 2 SnH 3.5- х 保持顺磁性低至 2 K（测量极限）。
• Shilov, A. L., Russian Journal of Inorganic Chemistry, 1991, vol. 36, p. 1256 - 1261
  作者：Shilov, A. L.

  DOI：——

  日期：——
• Kost, M. E.; Raevskaya, M. V.; Shilov, A. L., Russian Journal of Inorganic Chemistry, 1979, vol. 24, p. 1803 - 1805
  作者：Kost, M. E.、Raevskaya, M. V.、Shilov, A. L.、Yaropolova, E. I.、Mikheeva, V. I.

  DOI：——

  日期：——
• Crystal structures and hydrogenation–dehydrogenation characteristics of Er(Ni1−xMnx)2
  作者：Q.A. Zhang、Z.Q. Dong、S.C. Xie

  DOI：10.1016/j.jallcom.2014.11.157

  日期：2015.3

  The crystal structures and hydrogenation-dehydrogenation characteristics of Er(Ni1-xMnx)(2) compounds are investigated in this work. It is found that either annealing or hydrogenation leads to ordering transition of ErNi2 from MgCu2-type structure to TmNi2-type superstructure. As Mn content is within x = 0.2-0.8 and 0.9-1, Er(Ni1-xMnx)(2) compounds have C15 and C14 structures, respectively. The hydrogen absorption content of the C15-type Er(Ni1-xMnx)(2) increases with raising Mn content x, however, the absorption plateau pressure decreases gradually and hydrogen desorption becomes difficult. ErMn2 can absorb hydrogen to form irreversible ErMn2H3.4 and reversible ErMn2H4.8 at 3.5 x 10(-5) and 1.5 x 10(-1) MPa, respectively. Nevertheless, the C14-type Er(Ni0.1Mn0.9)(2) compound is subjected to decomposition into ErMn(2)Hz and ErNi2Hy during hydrogen absorption. (C) 2014 Elsevier B.V. All rights reserved.