钴,加合(1:1)钇 | 12139-83-2

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 中文名称: 钴,加合(1:1)钇
• 英文名称: Cobalt;yttrium
• 英文别名: cobalt;yttrium
• CAS: 12139-83-2
• 化学式: CoY
• 分子量: 147.83903
• InChiKey: VQVNCTNULYBZGL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  2
• 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：

  钴 、 氢化钇 以 melt 为溶剂， 生成 钴,加合(1:1)钇
  参考文献：
  名称：

  Muon diffusion and relaxation in YCo2

  摘要：

  Muons were expected to gain additional information about the spin fluctuations proposed for this enhanced paramagnetic system. At the lowest temperatures the mu(+)SR signal can be explained by a static Kubo-Toyabe relaxation function. On raising the temperature an interplay is suggested to occur between muon diffusion and electronic relaxation of "Co-clusters" surrounding a Co vacancy yielding a maximum in the fluctuation rate versus temperature curve. This behaviour is similar to that found in the case of paramagnetic impurities in nonmagnetic metals, the "Co-cluster" moment being the analogue to the impurity spin. (C) 2000 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0921-4526(00)00399-9

文献信息

• Co-doped Y2O3 optical functional nanoparticles and novel self-assembly squama-like aggregates
  作者：X.G. Liu、J. Du、D.Y. Geng、S. Ma、J.M. Liang、M. Tong、Z.D. Zhang

  DOI：10.1016/j.jallcom.2007.03.042

  日期：2008.6

  Co-doped Y2O3 optical functional nanoparticles with size of 4-10 nm have been synthesized by the plasma arc-discharge method. Meanwhile, novel three-dimensional squama-like macro-aggregates were self-assembled by disordered nanoparticles synthesized simultaneously in the arcdischarge process. The formation mechanism of the aggregates is ascribed to the periodic coagulation of Y nanoparticles. The valence states of Co in Y2O3 lattice can be determined as +2 from XPS spectrum with an etching depth of 6 nm. For Co-doped Y2O3 nanoparticles, upon excitation with 426 nm, a red emission (620 nm) has been observed which originates from (4)A(2) (F-4) -> T-4(1) (P-4) d-d transitions of Co2+ ions in tetrahedral co-ordination. (C) 2007 Elsevier B.V. All rights reserved.
• Nanograined YCo5-based powders with high coercivity
  作者：Ning Tang、Zhongmin Chen、Yong Zhang、George C Hadjipanayis、Fuming Yang

  DOI：10.1016/s0304-8853(00)00425-x

  日期：2000.9

  Highly-coercive YCo5-based nanograined powders with composition YxCo100-x (x = 16.8-20) have been synthesized by mechanical milling of as-cast alloys and subsequently annealing them. The optimum magnetic properties have been obtained in Y19.5Co80.5 powders milled for 4 h and annealed at 950 degrees C for 1 min with a coercivity of 16.0 kOe, a high M-t/M-s ratio of 0.67 and a medium-strength maximum energy product (BH)(max) of 7.7 MG Oe, Microstructure studies reveal that the Y19.5Co80.5 powders have a nearly single YCo5 structure with a grain size of about 30-40 nm. The high coercivity is attributed to the high anisotropy field of the YCo5 phase and to its nanoscale grain size. (C) 2000 Elsevier Science B.V. All rights reserved.