Cobalt--gadolinium (1/3) | 12016-76-1

• 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: Cobalt--gadolinium (1/3)
• 英文别名: cobalt;gadolinium
• CAS: 12016-76-1
• 化学式: CoGd₃
• 分子量: 530.743
• InChiKey: UDQHWBIHJGHERZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.0
• 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：

  Cobalt--gadolinium (1/3) 、 gadolinium telluride 以 neat (no solvent, solid phase) 为溶剂， 以80%的产率得到
  参考文献：
  名称：

  Synthesis, structure and bonding of Gd6MTe2 (M=Co, Ni), Er6RuTe2

  摘要：

  Three new rare earth metal-rich compounds, Gd6MTe2 (M = Co, Ni) and Er6RuTe2, were synthesized in direct reactions between the R, R3M, and R2Te3 (R=Gd, Er, M=Co, Ni, Ru). These materials all adopt the same Zr6CoAl2 structure type with space group P (6) over bar 2m (No. 189, Z=1). Single crystal structures of Gd6CoTe2 and Er6RuTe2 were determined and lattice parameters are a=b=8.3799(5), c = 3.9801(4) Angstrom, and a = b = 8.1473(5) Angstrom, c = 3.9962(4) Angstrom, respectively. Gd6NiTe2 was characterized by X-ray powder diffraction; lattice parameters are a = b = 8.412(2), c = 3.9577(9) Angstrom. Metal-metal bonding correlations were analyzed using the empirical Pauling bond order concept. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/s0925-8388(03)00456-0
• 作为产物：
  描述：

  氯化钆 、 钴 在 LiCl 、 KCl 作用下， 以 melt 为溶剂， 生成 Cobalt--gadolinium (1/3)
  参考文献：
  名称：

  Co-Gd合金薄膜的熔盐电化学形成及相控制

  摘要：

  摘要 在 723 K 的熔融 LiCl-KCl-GdCl 3 (0.5 mol%) 系统中研究了 Gd-Co 合金的电化学形成。通过阴极电解在 0.43 K 下在 Co 基板上形成 CoGd 3 膜（12 μm 厚） V（相对于 Li + /Li）持续 1 小时。通过阳极溶解Gd，形成的CoGd 3 合金相转变为其他合金相。发现CoGd 3 、Co 2 Gd 和Co 7 Gd 2 的形成电位分别为0.55、0.80和0.96V。

  DOI：

  10.1016/j.jallcom.2004.02.041

文献信息

• Spin-flop quasi-first order phase transition and putative tricritical point in Gd3Co
  作者：S. Shanmukharao Samatham、Soumendu Barua、K.G. Suresh

  DOI：10.1016/j.jmmm.2017.08.052

  日期：2017.12

  Magnetic nature of Gd3Co is investigated using detailed measurements of temperature and field dependent magnetization. The antiferromagnetic phase is field-instable due to prevailing ferromagnetic exchange correlations above Neel temperature T-N similar to 130 K. Below T-N, with gradually increasing magnetic fields, the compound undergoes a quasi-first order phase transition from AFM to spin-flop over region and eventually acquires ferromagnetic phase in higher fields. Further the point at which the quasi-first order transition ends and second order transition sets in is the tricritical point, T-TCP similar to 125: 6 K, H-TCP similar to 4: 4 kOe. (C) 2017 Elsevier B.V. All rights reserved.
• Role of electronic and structural characteristics on the magnetic properties of the Gd3Co1-xRux series
  作者：J.C.B. Monteiro、R. dos Reis、F.G. Gandra

  DOI：10.1016/j.jallcom.2018.07.210

  日期：2018.11

  We report a systematic study to unveil the major magnetic and calorimetric behavior differences between Gd3Co and Gd3Ru compounds. We focus on the investigation of the microscopic origin of the enhanced magnetocaloric properties presented by Gd3Ru through an analysis of the magnetization, structural and calorimetric properties of the Gd3Co1-xRux series. Chemical substitution and hydrostatic pressure were used as tools to determine the differences between the structural and electronic changes within the series. Our experimental data and DFT calculations suggest that while the structural changes causes almost no effect on the magnetic properties of the compounds, the hybridization between the gadolinium 5d and the transition metal 3d(4d) orbitals plays a fundamental role and regulate the magnetic interaction in the series. (C) 2018 Elsevier B.V. All rights reserved.
• The isothermal section of the Gd–Dy–Co ternary system at 800K
  作者：Y.H. Zhuang、Q.M. Zhu、J.Q. Li、K.W. Zhou、J.Q. Deng、W. He

  DOI：10.1016/j.jallcom.2005.12.007

  日期：2006.9

  The isothermal section of the phase diagram of the Gd-Dy-Co ternary system at 800 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA), optical microscopy and scanning electron microscopy (SEM) techniques. The result shows that this section consists of 9 single-phase regions and 9 two-phase regions, and 1 three-phase region. The compounds Gd2Co17 and Dy2Co17, Gd2Co7 and Dy2Co7, GdCo3 and DYCo3, GdCo2 and DYCo2, Gd12Co7 and Dy12Co7, Gd3Co and Dy3Co form a continuous series of solid solutions. In addition, the single phases alpha-Gd and alpha-Dy also form a continuous series of solid solution. The maximum solid solubility of Dy in Gd4Co3 is about 10.8 at.%. The binary compounds Dy4Co3, GdCo5 and DyCo5 were not observed at 800 K. No ternary compound was found. (c) 2006 Published by Elsevier B.V.
• The 500°C isothermal section of the Gd–Tb–Co ternary system
  作者：K.W. Zhou、Y.H. Zhuang、J.Q. Li、Q.M. Zhu、J.Q. Deng

  DOI：10.1016/j.jallcom.2005.11.062

  日期：2006.9

  The isothermal section of the phase diagram of the Gd-Tb-Co ternary system at 500 degrees C was investigated by X-ray powder diffraction, differential thermal analysis and metallographic analysis techniques. In this isothermal section, there are nine single-phase regions, eight two-phase regions and none three-phase region. No ternary compound was found. The compounds Gd2Co17 and Th2Co17, Gd2Co7 and Tb2Co7, GdCo3 and TbCo3, GdCo2 and TbCo2, Gd4Co3 and Tb4Co3, Gd12Co7 and Tb12Co7, Gd3Co and Tb3Co, Gd and Tb form a continuous series of solid solutions. In addition, we experimentally determined the vertical section of pseudobinary system and the Curie temperature of Gd1-xTbxCo2 (x from 0 to 1) series alloys. (c) 2005 Elsevier B.V. All rights reserved.
• Specific heat of the R3Co (R = heavy rare earth or Y) compounds
  作者：N. V. Tristan、K. Nenkov、T. Palewski、K. P. Skokov、S. A. Nikitin

  DOI：10.1002/pssa.200306418

  日期：2003.3

  Specific heat measurements were performed in wide temperature range T = 2-300 K for the R3Co (R = Er-Gd, Y) compounds. Using values of the Sommerfeld coefficient and Debye temperature estimated for Y3Co compound, the Debye temperatures, phonon and conduction electron contributions as well as magnetic contribution to the specific heat were estimated for all other R3Co compounds.