yttrium | 110873-00-2

• 英文名称: yttrium
• CAS: 110873-00-2
• 化学式: Y₃
• 分子量: 266.718
• InChiKey: VAOJVRLHZWNVJK-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

• 作为产物：
  描述：

  氢化钇 以 neat (no solvent) 为溶剂， 生成 yttrium
  参考文献：
  名称：

  Properties of Sc3, Y3, and Sc13 molecules at low temperatures, as determined by ESR

  摘要：

  Sc 3 and Y3 molecules have been isolated in rare gas matrices at temperatures near 4 K. ESR spectra establish that the structure of Sc3 is an equilateral triangle at 4–30 K with a 2A′1 ground state. The possibility remains that Sc3 is a fluxional bent molecule with a very low barrier to pseudorotation. The 45Sc hyperfine splitting indicates that the unpaired electron has little s character and is delocalized in 3d orbitals on the three equivalent atoms. Y3, however, is not equilateral and is most probably a bent molecule at these temperatures with the spin again distributed over the 3d atomic orbitals, but in a 2B2 ground state. La3 was not observed and is therefore judged to be a linear orbitally degenerate molecule. Under special conditions, a cluster of exceptional stability Scx, where x≥9 is formed in neon matrices. From its uniqueness and from the hyperfine structure in its ESR spectrum, it is suggested that it may be Sc13 with an icosahedral structure. This places 12 equivalent atoms at the vertices and one at the center of the icosahedron and leads to a 2Ag ground state. However, Scx as observed at 4 K could also be a dynamic Jahn–Teller molecule with only a small barrier between its distorted conformations.

  DOI：

  10.1063/1.445751