Germane;ytterbium | 634185-45-8

• 英文名称: Germane;ytterbium
• CAS: 634185-45-8
• 化学式: Ge₄Yb₅
• 分子量: 1155.56
• InChiKey: MCSNJWCFVVFAHA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -5.81
• 重原子数：
  9
• 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：

  锗烷 、 氢化镱 以 neat (no solvent) 为溶剂， 生成 Germane;ytterbium
  参考文献：
  名称：

  Balducci, G.; Brutti, S.; Ciccioli, A., Journal of Physical Chemistry B

  摘要：

  DOI：

文献信息

• Yb4LiGe4 – A Yb mixed valent Zintl phase with strong electronic correlations
  作者：Sebastian C. Peter、Steven M. Disseler、J. Niclas Svensson、Pietro Carretta、Michael J. Graf

  DOI：10.1016/j.jallcom.2011.11.148

  日期：2012.3

  Single-phase samples of Yb4LiGe4 and Yb5Ge4 were synthesized using high frequency (HF) heat treatment. Yb4LiGe4 crystallizes in orthorhombic space group Pnma with the Gd5Si4 type of crystal structure and lattice parameters a = 7.0828(3) angstrom, b = 14.6415(7) angstrom, and c = 7.6279(4) angstrom. One Yb position in Yb5Ge4 is substituted by the lithium atom and causes a distortion of the germanium tetragons in Yb4LiGe4. Investigation of the electronic state of Yb via magnetic susceptibility and X-ray absorption near-edge spectroscopy (XANES) revealed a presence of two electronic states of ytterbium, 4f(13) and 4f(14) (mixed valence), in Yb5Ge4 and Yb4LiGe4. Studies of the temperature dependence of the electrical resistivity, magnetization, Li-7 spin-lattice relaxation rate and the specific heat indicate that strong electronic correlations are present in Yb4LiGe4, and below approximately 50 K there is a competition between ferromagnetic and antiferromagnetic correlations. Magnetic ordering in Yb4LiGe4, if present, occurs below the reported antiferromagnetic transition temperature of 1.7 K for Yb5Ge4. (C) 2011 Elsevier B.V. All rights reserved.