Iron(3+) arsenate hydrate (1:1:2) | 20909-44-8

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属氧阴离子化合物
• 英文名称: Iron(3+) arsenate hydrate (1:1:2)
• 英文别名: iron(3+);arsorate;dihydrate
• CAS: 20909-44-8；16103-66-5
• 化学式: 3AsO₄*4Fe*4HO*H*6H₂O
• 分子量: 826.282
• InChiKey: UYZMAFWCKGTUMA-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  -5.72
• 重原子数：
  8
• 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：
  88.2
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  potassium dihydrogenarsenate 、 iron(III) ammonium sulfate dodecahydrate 在 盐酸 、 potassium carbonate 作用下， 以 水 为溶剂， 反应 3.0h， 生成 Iron(3+) arsenate hydrate (1:1:2)
  参考文献：
  名称：

  Frustrated Magnetism of Pharmacosiderite Comprising Tetrahedral Clusters Arranged in the Primitive Cubic Lattice

  摘要：

  We show that pharmacosiderite is a novel cluster antiferromagnet comprising frustrated regular tetrahedra consisting of spin-5/2 Fe3+ ions arranged in the primitive cubic lattice. The connectivity of the tetrahedra and inter-cluster interaction of 2.9 K, which is significantly large compared with the intra-cluster interaction of 10.6 K, provide a unique platform for frustration physics. An unconventional antiferromagnetic order is observed below T-N similar to 6K, accompanied by a weak ferromagnetic moment and large fluctuation, as demonstrated by Mossbauer spectroscopy. A q = 0 magnetic order with a total S = 0 for the tetrahedral cluster is proposed based on an irreducible representation analysis, which may explain the origin of the weak ferromagnetism and fluctuation.

  DOI：

  10.7566/jpsj.87.093702