manganese hexafluoride ion | 23653-68-1

• 英文名称: manganese hexafluoride ion
• CAS: 23653-68-1
• 化学式: F₆Mn
• 分子量: 168.928
• InChiKey: YQTXPRXSXILCID-UHFFFAOYSA-H

反应信息

• 作为产物：
  描述：

  manganese(II) fluoride 、 氟化铝 生成 manganese hexafluoride ion
  参考文献：
  名称：

  ESR evidence for chemically assisted thermal incorporation of Mn2+ centres into aluminium fluoride lattices

  摘要：

  The incorporation of Mn2+ ions into the bulk of polycrystalline AlF3 is reported for the first time as a result of combined chemical and thermal treatments. Mn-55-hyperfine (hfs) and Mn-55-F-19-superhyperfine (shfs) structures appear to be sensitive tools to indicate structural reorganization processes. ESR spectroscopic X-band in situ investigations of powder samples in the temperature range 4 K less than or equal to T less than or equal to 1473 K led to well defined ESR spectra even at 1473 K as a result of specific chemical and physical processes taking place at distinct intervals of the temperature range. Two coupled conditions appear to be necessary prerequisites for the appearance of the well resolved Mn-55-F-19 shfs structure of MnF64- subunits: (i) temperature treatments covering the range above 673 K, and (ii) the presence of water traces in the educts. In addition to X-band, Q-band measurements were performed to verify the coordination of Mn2+ ions by six F- ions using the better spectral resolution at this frequency. Finally, it can be stated that the formation and stabilization of regular MnF64- units critically depend on the state of the order of the matrix. Therefore, the shfs pattern can advantageously be used as an order parameter. All experimental ESR powder spectra could be simulated by diagonalization of the spin hamiltonian matrix for the S = 5/2 and I = 5/2 spin problem (Mn2+). (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0022-3697(98)00279-0