Potassium;sodium;hexafluorosilicon(2-) | 38684-05-8

• 英文名称: Potassium;sodium;hexafluorosilicon(2-)
• CAS: 38684-05-8
• 化学式: F₆Si*K*Na
• 分子量: 204.164
• InChiKey: FJQIBVPQLMCKDH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  potassium hexafluorosilicate 、 sodium hexafluorosilicate 在 HCl 作用下， 以 水 为溶剂， 生成 Potassium;sodium;hexafluorosilicon(2-)
  参考文献：
  名称：

  Synthesis and physicochemical investigation of mixed alkali-metal cation hexafluorosilicates

  摘要：

  The title compounds of MM'SiF6 (M, M' = Li, Na, K, Rb, Cs) and Li0.5Na1.5SiF6 composition have been synthesized. Their crystallographic, x-ray, and IR spectral properties were studied. The greatest distortion of the C3v symmetry of the hexafluorosilicate ion was observed in Li0.5Na1.5SiF6 crystal.

  DOI：

  10.1007/bf00869500

文献信息

• Crystal structure of KNaSiF6
  作者：J. Fischer、V. Krämer

  DOI：10.1016/0025-5408(91)90173-j

  日期：1991.9

  Crystal data of KNaSiF6 were obtained by means of X-ray diffraction. The compound crystallizes with space group Pnma and the lattice constants a = 9.3246(11), b = 5.4992(6), and c = 9.7892(13) angstrom. Its crystal structure was solved and refined to R = 0.046. SiF6 octahedra form layers parallel to (100), connected within these layers by Na-F bonds and between the layers by K-F as well as Na-F bonds. K shows a ninefold co-ordination, Na a tenfold co-ordination. Unexpectedly, KNaSiF6 shows only far structural relationships to the components K2SiF6 and Na2SiF6.