Copper--lanthanum (2/1) | 12357-14-1

• 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--lanthanum (2/1)
• 英文别名: copper;lanthanum
• CAS: 12357-14-1
• 化学式: Cu₂La
• 分子量: 265.998
• InChiKey: CHMGNGSELIUECS-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--lanthanum (2/1) 、 氢气 以 neat (no solvent) 为溶剂， 生成
  参考文献：
  名称：

  Structural studies of pseudobinary La(Cu1−xNix)2 compounds and their hydrides

  摘要：

  The effect of Cu-for-Ni substitution on the structural and hydrogenation properties of the LaCu2 compound with hexagonal AlB2 type structure has been studied. An extended solid solution was found from LaCu2 to La(Cu0.35Ni0.65)(2). The La(Cu1-xNix)(2) compounds easily absorb hydrogen at room temperature under I bar pressure, after preliminary activation treatment by heating in vacuum. Hydrogenation of LaCu2 resulted in the formation of amorphous LaCu2H3.3 hydride. For all Ni-substituted compounds formation of crystalline hydrides with CeCu2 or AlB2 type structure of the metallic sublattice and hydrogen content up to 4.4 at.H/f.u was observed. As found, long-term exposure of the La(Cu0.4Ni0.6)(2)H-4.2 and La(Cu0.35Ni0.65)(2)H-4.0 hydrides to the air or their heating under vacuum up to 100 degrees C is accompanied by structural transition of the metallic sublattice to Fe2P type structure, previously observed for Pr(Cu,Ni)(2)-based hydrides. (c) 2005 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2004.12.025
• 作为产物：
  描述：

  三氢化镧 、 铜 以 melt 为溶剂， 生成 Copper--lanthanum (2/1)
  参考文献：
  名称：

  LnCu2金属间化合物的氧化还原热研究及其对2-丙醇分解的催化行为

  摘要：

  摘要 对二元金属间化合物 LnCu 2 (Ln = La、Ce、Pr、Nd、Eu、Gd、Dy、Tm、Yb) 进行了高温氧化还原研究。通过沿镧系元素系列的 O 2 -TG 和 H 2 -TG 或 H 2 -TPR 研究优化了两步循环。氧化质量吸收发生在很宽的温度范围内（200-900 °C），根据镧系元素产生两种双金属铜-镧系元素氧化物家族：3CuO·Ln 2 CuO 4 (Ln = La, Pr, Nd, Eu, Gd) 和 2CuO·Ln 2 Cu 2 O 5 (Ln = Dy, Tm, Yb)，除了产生 2CuO·CeO 2 的 CeCu 2 。在氢气下，所有系统都表现出两个还原步骤，并在 150-600°C 的温度范围内伴随着质量损失。第一个质量损失与 CuO 的减少有关，而第二个质量损失对应于 Ln 2 CuO 4 或 Ln 2 Cu 2 O 5 相中铜的减少，伴随着 Ln 2 O

  DOI：

  10.1016/j.jallcom.2008.11.113

文献信息

• Enthalpies of formation of the LaCu intermetallic phases
  作者：F. Meyer-Liautaud、A. Pasturel、C.H. Allibert、C. Colinet

  DOI：10.1016/0022-5088(85)90307-8

  日期：1985.8
• The isothermal section of the phase diagram of the La–Ni–Cu ternary system at 673K
  作者：Jingqi Liu、Fengquan Ma、Yinghong Zhuang、Fangwei Jiao、Jialing Yan

  DOI：10.1016/j.jallcom.2004.05.076

  日期：2005.1

  The isothermal section of the phase diagram of the ternary system La-Ni-Cu has been investigated by X-ray diffraction, differential thermal analysis, optical microscopy and electron microscopy techniques. It consists of 13 single-phase regions, 23 two-phase regions and 11 three-phase regions. At 673 K, the maximum solid solubility of Cu in La2Ni7, LaNi3, La7Ni16, LaNi3 and LaNi is about 2, 2, 3, 3 and 5 at.% Cu, respectively. The solid solubility of Cu in La7Ni3 and Ni in LaCu6 is too small to observe. Cu and Ni can replace each other in LaNi5 and LaCu5, the LaNi5 and LaCu5 form a continuous solid solution. The maximum solid solubility of Ni in LaCu2 and LaCu is about 15 and 4at.% Ni, respectively. A new ternary compound La10Cu85Ni5 has been observed in the La-Ni-Cu ternary system. (C) 2004 Elsevier B.V. All rights reserved.
• The lanthanum-copper system
  作者：S. Cirafici、A. Palenzona

  DOI：10.1016/0022-5088(77)90104-7

  日期：1977.6
• Magnetoresistance, de Haas-van Alphen Effect and Fermi Surface of LaCu<b>₂</b>
  作者：Melike Abliz、Parhat Ahmet、Dai Aoki、Yasushi Kimura、Sudesh K. Dahr、Rikio Settai、Yoshichika Ōnuki、Hisatomo Harima

  DOI：10.1143/jpsj.66.194

  日期：1997.1.15

  We have succeeded in growing a single crystal of LaCu2 and have done the electrical resistivity, magnetoresistance, de Haas-van Alphen effect and specific heat experiments. The Fermi surface is found to consist of three kinds of closed surfaces and a multiply-connected one, which are well explained by the FLAPW band calculations.
• Reactivity of binary mixtures of Cu(II) oxalate and La(III) oxalate
  作者：L. Bapat、G. N. Natu、M. Bhide、J. Kher

  DOI：10.1007/bf01983444

  日期：1997.6

  Reactivity of binary mixtures of oxalates of Cu(II) and La(III) was studied by observing their thermal behaviours in decomposition using TG, DTA and XRD techniques to set the temperature conditions for preparations of various composites of oxides of Cu(II) and La(III). In the thermal behaviour it was found that the decomposition of Cu(II) oxalate is not affected while that of La(III) oxalate is drastically affected in the case of all the mixtures. The decomposition temperature at which La(III) oxide is formed is lowered by 250 K in the case of ail the mixtures while the complete decomposition occurred at similar to 723 K only in the case of mixtures containing excess Cu(II) oxalate.At similar to 823 K La2CuO4 phase is developed in all the mixtures while alpha-La and Cu2La phases are also detected in mixtures containing excess Cu(II) oxalate. Therefore, the temperature 823 K was found to be suitable to prepare various composites viz. La2CuO4, La2CuO4 . La2O3 and La2CuO4 . CuO to study their electrical properties.