Lanthanum--rhodium (1/3) | 12031-27-5

• 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: Lanthanum--rhodium (1/3)
• 英文别名: lanthanum;rhodium
• CAS: 12031-27-5
• 化学式: LaRh₃
• 分子量: 447.622
• InChiKey: UQBHDAZUTQCXTQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 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：

  三氢化镧 、 铑 以 melt 为溶剂， 生成 Lanthanum--rhodium (1/3)
  参考文献：
  名称：

  La-Rh-O 体系中的相关系和 LaRhO3 的热力学性质

  摘要：

  通过光学和扫描电子显微镜、粉末 X 射线衍射 (XRD) 和 X 射线能量色散分析 (EDAX) 检查平衡样品，确定了 1223 K 下 La-Rh-O 系统中的相关系。仅鉴定出一种具有扭曲斜方晶钙钛矿结构（Pbnm，a = 0.5525，b = 0.5680，c = 0.7901 nm）的三元氧化物 LaRhO3。沿 La-Rh 二元的合金和金属间化合物与 La2O3 处于平衡状态。LaRhO3 的热力学特性是在 890 到 1310 K 的温度范围内确定的，使用包含氧化钇稳定的氧化锆作为电解质的固态电池。电动势单元的新四室设计用于提高测量的准确性。对于反应 该化合物在加热时分解为 La2O3、Rh 和 O2 的混合物。

  DOI：

  10.1111/j.1151-2916.1995.tb08821.x

文献信息

• Phase Relations in the System La-Rh-O and Thermodynamic Properties of LaRhO3
  作者：K. Thomas Jacob、Yoshio Waseda

  DOI：10.1111/j.1151-2916.1995.tb08821.x

  日期：1995.2

  intermetallics along the La-Rh binary are in equilibrium with La2O3. The thermodynamic properties of LaRhO3 were determined in the temperature range 890 to 1310 K, using a solid-state cell incorporating yttria-stabilized zirconia as the electrolyte. A new four-compartment design of the emf cell was used to enhance the accuracy of measurement. For the reaction The compound decomposes on heating to a mixture

  通过光学和扫描电子显微镜、粉末 X 射线衍射 (XRD) 和 X 射线能量色散分析 (EDAX) 检查平衡样品，确定了 1223 K 下 La-Rh-O 系统中的相关系。仅鉴定出一种具有扭曲斜方晶钙钛矿结构（Pbnm，a = 0.5525，b = 0.5680，c = 0.7901 nm）的三元氧化物 LaRhO3。沿 La-Rh 二元的合金和金属间化合物与 La2O3 处于平衡状态。LaRhO3 的热力学特性是在 890 到 1310 K 的温度范围内确定的，使用包含氧化钇稳定的氧化锆作为电解质的固态电池。电动势单元的新四室设计用于提高测量的准确性。对于反应 该化合物在加热时分解为 La2O3、Rh 和 O2 的混合物。
• Hydrogen absorbing characteristics of R–M (R=La, Ce; M=Co, Rh, Ir, Ni, Pd, Pt) binary systems
  作者：J. Kadono、K. Hirano、S. Nishiuchi、R. Ariga、S. Yamamoto、T. Tanabe、H. Miyake

  DOI：10.1016/j.jallcom.2005.04.073

  日期：2006.2

  The capacity, rate and reversibility of the hydrogen absorbing/desorbing reaction have been measured for the binary systems composed of rare earth metal, R (La or Ce), and transition metal, M (Co, Rh, Ir, Ni, Pd or Pt), by Sieverts' method. These experimental results were discussed by comparing with the theoretical ones; density of states, cohesive energy and energy fluctuation, which were calculated by the extended Huckel method. Major results obtained are as follows. (1) The capacity of hydrogen absorption decreases almost linearly with increasing M components in R-M systems and it is explained in terms of the density of states. (2) The rate of hydrogen-absorbing reaction in La-M systems are larger than that of Ce-M systems. The larger absorption rate corresponds to the larger energy fluctuation. (3) The reversibility of the hydrogen absorbing/desorbing reaction is closely related with the cohesive energy of these systems. When the cohesive energy of the hydrogen absorbed system is large, a reverse (i.e. desorbing) reaction hardly occurs. (c) 2005 Elsevier B.V. All rights reserved.
• Electronic properties of PuNi3-type intermetallic superconductor LaRh3
  作者：Senwei Liu、Junyi Zhang、Ming Xia、Chunqiang Xu、Wei Zhou、Guiping Wu、Xiaofeng Xu、Bin Qian、Zhixiang Shi

  DOI：10.1016/j.physc.2020.1353619

  日期：2020.5

  magnetic susceptibility, and heat capacity of the intermetallic superconductor LaRh3 are systematically studied. LaRh3 crystallizes in the PuNi3-type rhombohedral structure, which displays a sharp superconducting transition at temperature ≈ 2.6 K on both the electrical resistivity and magnetic susceptibility curves. The magnetization hysteresis loop indicates that LaRh3 is a type-II superconductor. The

  对金属间超导体LaRh 3的电阻率，磁化率和热容进行了系统研究。LaRh 3个结晶在普尼3型菱形结构，其中显示在温度急剧超导转变≈在电阻率和磁化率曲线二者2.6ķ。磁化磁滞回线表明LaRh 3是II型超导体。所估计的零温度上限临界场μ 0 ħ Ç 2（0）为0.8左右T，其位于远低于泡利限制，指示可能常规超导性。对热容量数据的进一步分析表明，LaRh图3是具有各向同性s波间隙的弱耦合BCS超导体。