五氟化铑

五氟化铑
IUPAC名
Rhodium(V) fluoride
识别
CAS号 14521-17-6  checkY
41517-05-9（四聚体）  checkY
PubChem 129730862
SMILES
 
  • F[Rh](F)(F)(F)F
性质
化学式 F5Rh
摩尔质量 197.9 g·mol−1
外观 红色固体
密度 3.95 g cm3
结构
晶体结构 单斜
空间群 P21/a
晶格常数 a = 12.338, b = 9.9173, c = 5.5173
晶格常数 α = 90°, β = 100.42°°, γ = 90°
若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。

五氟化铑是一种无机化合物，化学式为Rh4F20。它是一种红色的固体。它可以由三氟化铑在400 °C被氟化而成。[1]

根据X射线晶体衍射，铑原子的中心为八面体型。其结构与相关的五氟化钌、五氟化锇和五氟化铱非常相似。它们都是四聚体，这意味着它们具有分子结构[MF5]4。[2]Rh-F-Rh角平均为135°，这导致了褶皱结构。

参考资料

  1. ^ Holloway, J. H.; Rao, P. R.; Bartlett, Neil. Quinquevalent rhodium compounds: RhF5 and CsRhF6. Chemical Communications. 1965: 306–7. doi:10.1039/c19650000306. 
  2. ^ Morrell, B. K.; Zalkin , A.; Tressaud, A.; Bartlett, N. Crystal Structure of Rhodium Pentafluoride. Inorganic Chemistry. 1973, 12 (11): 2640–p2644 [2020-06-03]. doi:10.1021/ic50129a029. （原始内容存档于2020-06-19）. 

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