Lanthanum--palladium (1/3) | 12031-23-1

• 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--palladium (1/3)
• 英文别名: lanthanum;palladium
• CAS: 12031-23-1
• 化学式: LaPd₃
• 分子量: 458.165
• InChiKey: HCBHHWYICRNVOI-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

• 作为反应物：
  描述：

  锰 、 Lanthanum--palladium (1/3) 以 melt 为溶剂， 生成
  参考文献：
  名称：

  Singh, Surjeet; Dhar, S. K., Physical Review B: Condensed Matter and Materials Physics, p. 1 - 8

  摘要：

  DOI：
• 作为产物：
  描述：

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

  Hydrogen absorbing characteristics of R–M (R=La, Ce; M=Co, Rh, Ir, Ni, Pd, Pt) binary systems

  摘要：

  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.

  DOI：

  10.1016/j.jallcom.2005.04.073
• 作为试剂：
  描述：

  丁烯 在 Lanthanum--palladium (1/3) 氢气 作用下， 生成 顺-2-丁烯 、 反-2-丁烯 、 丁烷
  参考文献：
  名称：

  Catalysis by palladium–rare-earth-metal (REPd₃) intermetallic compounds: hydrogenation of but-1-ene, buta-1,3-diene and but-1-yne

  摘要：

  在一系列粉末状 REPd3 金属间化合物（RE = La、Ce、Pr、Nd、Sm）上研究了丁-1-烯、丁-1,3-二烯和丁-1-炔的氢化反应。由于发现催化预处理会改变活性和选择性，因此在催化试验前后，通过 XRD 和 XPS 对化合物的体积和表面特征进行了分析。在 573 K 下用 H2 预处理 15 小时后，与钯/浮石催化剂相比，这些催化剂显示出稳定且可重复的活性和选择性，且整个系列的活性和选择性都发生了特征性变化。LaPd3 最容易分解，其行为类似于 Pd/La2O3 催化剂。CePd3 只被部分分解，表面部分转化为金属钯和具有催化活性的铈化合物，从而产生了一种高活性、低选择性的催化剂。相反，Pr(Nd,Sm)Pd3 在块体中没有分解，它们比 Pd/ 浮石具有更高的选择性。此外，还观察到丁-1,3-二烯与丁-1-炔的氢化速率比的典型趋势。不同的电子效应可解释这些钯催化剂的不同催化行为。

  DOI：

  10.1039/ft9918701453

文献信息

• Electronic structure of Ce and its intermetallic compounds
  作者：J. C. Fuggle、F. U. Hillebrecht、Z. Zołnierek、R. Lässer、Ch. Freiburg、O. Gunnarsson、K. Schönhammer

  DOI：10.1103/physrevb.27.7330

  日期：——
• Transition to nonmagnetic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>f</mml:mi></mml:math>states in Ce intermetallic compounds studied by bremsstrahlung isochromat spectroscopy
  作者：F. U. Hillebrecht、J. C. Fuggle、G. A. Sawatzky、M. Campagna、O. Gunnarsson、K. Schönhammer

  DOI：10.1103/physrevb.30.1777

  日期：——
• Intermediate valence to single ion Kondo behaviour in CePd3Bx alloys
  作者：M Houshiar、D.T Adroja、B.D Rainford

  DOI：10.1016/0921-4526(96)00096-8

  日期：1996.6

  Susceptibility, resistivity thermopower and magnetoresistivity data are presented for CePd(3)B(x) alloys, where the boron enters the lattice interstitially. All the data are consistent with a smooth cross-over from intermediate valence in CePd(3) to trivalent local moment behaviour in CePd(3)B(0.3). For x < 0.15 the alloys mirror the properties of CeP(3), but on reduced temperature scales. For 0.15 less than or equal to x < 0.3 the alloys obey single impurity Kondo theory, while the x = 0.3 alloy is close to the localised limit.
• Kondo state of the mixed-valent compound CePd3 under high pressure
  作者：T. Sawamura、T. Kagayama、G. Oomi

  DOI：10.1016/s0921-4526(97)00388-8

  日期：1997.8

  The electrical resistivity rho(T) of the mixed-valent compound CePd3 has been measured under high pressure up to 2.1 GPa, It is found that the temperature T-max showing the maximum in the rho(T) curve increases with increasing pressure. By using the present results and the pressure dependence of volume, we estimated the value of Gruneisen parameter Gamma(K) for CePd3 to be about 6, which is the same order of magnitude as that of the typical mixed-valent compound.
• Electrochemical formation of Pd–La alloy films in a LiF–NaF–KF–LaF3 melt
  作者：Huan Qiao、Toshiyuki Nohira、Yasuhiko Ito

  DOI：10.1016/s0925-8388(03)00203-2

  日期：2003.9

  Electrochemical reduction of lanthanum ion and formation of Pd-La alloy film were investigated in a LiF-NaF-KF-LaF3 (0.5 mol.% added) melt at 773 K. A cyclic voltammogram for a Pd electrode showed cathodic currents at more negative potential than 0.45 V (vs. K+/K), whereas no cathodic peak was observed for a Mo electrode. By XRD analysis, formations of Pd3La alloy films were confirmed for both samples electrolyzed at 0.45 V for 2 h and 0.25 V for I h. For the latter case, a dense and uniform Pd3La alloy film having thickness of approximately 30 mum was obtained. The cathodic peak at 0.35 V and the anodic peak at 0.70 V in the cyclic voltammogram were proved to correspond to the following reaction:3Pd + La(III) + 3e(-) reversible arrow Pd3La (C) 2003 Elsevier B.V. All rights reserved.