| 73509-93-0

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物
• CAS: 73509-93-0
• 化学式: FeH₃O₃
• 分子量: 108.022
• InChiKey: MSNWSDPPULHLDL-GMTIZOJPSA-K

反应信息

• 作为反应物：
  描述：

  nickel(II) hydroxide 、 以 neat (no solvent) 为溶剂， 生成 iron-nickel oxide powder
  参考文献：
  名称：

  Electronic state of the 57Fe probe atoms in perovskites LaMO3 (M = Ni, Cu)

  摘要：

  Mossbauer spectroscopy has been applied for comparative study of the electronic state of probe iron atoms in perovskite-like nikelate (LaNi0.99Fe0.01O3)-Fe-57 and cuprate (LaCu0.99Fe0.01O3)-Fe-57. The valence states of the Fe-57 atoms in these isostructural matrices are significantly different. In the nikelate, the iron atoms are in one of its ordinary valence state Fe3+, whereas, in the cuprate, the iron atoms have the formal oxidation state +4, as follows from hyperfine coupling parameters. The observed differences between the valence states of the Fe-57 probe atoms are attributed to the different electronic structures of the Ni and Cu atoms in the perovskites. Configuration interaction calculations show that the major contribution to the electronic state of the cation-anion complex [NiO6](9-) in the nikelate is made by the d(7) configuration. For the cuprate, the d(9)(L) under bar configuration dominates the electronic state of the [CuO6](9-) complex. The existence of one electron hole ((L) under bar) on oxygen atoms leads to partial charge transfer from the doped iron atoms in the cuprate, Fe3+(d(5)) + O-((L) under bar) -> Fe4+(d(4)) + O2-. As a result, the ground state of the dopant cation-anion complex FeO6 can be represented as a superposition of configurations, d(4) (55%) and d(5)(L) under bar (45%). DOI:10.1134/S0036023609120195

  DOI：

  10.1134/s0036023609120195