lanthanum(III) hydrogen selenite selenate | 838856-57-8

• 英文名称: lanthanum(III) hydrogen selenite selenate
• CAS: 838856-57-8
• 化学式: HO₃Se*La*O₄Se
• 分子量: 409.829
• InChiKey: MXBJRWHSWAQZKU-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  -5.24
• 重原子数：
  10.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  140.62
• 氢给体数：
  1.0
• 氢受体数：
  6.0

反应信息

• 作为产物：
  描述：

  lanthanum(III) oxide 、 硒酸 在 KOH 、 Si(OEt)4 、 HNO₃ 作用下， 以 水 为溶剂， 以80%的产率得到lanthanum(III) hydrogen selenite selenate
  参考文献：
  名称：

  Synthesis of rare-earth selenate and selenite materials under “sol–gel” hydrothermal conditions: crystal structures and characterizations of La(HSeO3)(SeO4) and KNd(SeO4)2

  摘要：

  Two rare-earth compounds containing selenium atoms, La(HSeO3)(SeO4) with a new open framework structure and KNd(SeO4)(2) with a layered structure, have been synthesized under "sol-gel" hydrothermal conditions for the first time. Single-crystals of La(HSeO3)(SeO4) crystallize in the monoclinic system (P2(1), a = 8.5905(17)Angstrom, b = 7.2459(14)Angstrom, c = 9.5691(19)Angstrom, beta = 104.91(3)degrees, Z = 2, R-AII = 0.032). The structure contains puckered polyhedral layers made of LaOx (x = 9, 10) and SeO4 groups, which are connected via SeO3-units to the 3D structure. The crytal structure of KNd(SeO4)(2) (monoclinc, P2(1)/c, a = 8.7182(17)Angstrom, b = 7.3225(15)Angstrom, c = 11.045(2)Angstrom, beta = 91.38(3)degrees, Z = 4, R-AII = 0.051) contains honeycomb-like six-ring NdO9 polyhedra forming layers which are further decorated with SeO4 tetrahedra. The K+ ions occupy the interspaces of these layers and provide the charge balance. (C) 2004 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.jssc.2004.09.038