六氟铋酸铯 | ||
---|---|---|
| ||
英文名 | cesium hexafluorobismuthate | |
别名 | 六氟合铋(V)酸铯 | |
识别 | ||
CAS号 | 29032-76-6 | |
性质 | ||
化学式 | CsBiF6 | |
摩尔质量 | 455.88 g·mol⁻¹ | |
密度 | 5.04 g·cm−3[1] | |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
六氟铋酸铯是一种无机化合物,化学式为CsBiF6。它是无色晶体,与六氟锇(V)酸钾(KOsF6)同构。[2]
制备及性质
六氟铋酸铯可由氟化铯与五氟化铋在无水氟化氢中反应得到。[3]氟化铯和五氟化锑按2:1化学计量比在300 °C进行反应,会得到白色的Cs2BiF7,它在无水氟化氢中分解,得到CsBiF6:[4]
- Cs2BiF7 + HF → CsHF2 + CsBiF6
它也可由碳酸铯和三氧化二铋的混合物在氟气流中于400~450 °C加热得到。[2]
它对潮湿十分敏感,[2]在潮湿空气中迅速变黄。[4]它和六氟锑酸五氟合氙在无水氟化氢中反应,得到Cs[XeF5][BixSb1-xF6]2(x=0.37~0.39)。[5]
参考文献
- ^ CsBiF6 Crystal Structure. Springer Materials. [2020-05-20]
- ^ 2.0 2.1 2.2 C. Hebecker. Über Alkalihexafluorobismutate(V). Zeitschrift für anorganische und allgemeine Chemie. 1970-09, 376 (3): 236–244 [2020-05-29]. ISSN 0044-2313. doi:10.1002/zaac.19703760305 (德语).
- ^ Karl O. Christe, William W. Wilson, Carl J. Schack. On the syntheses and properties of some hexafluorobismuthate (V) salts and their in the metathetical synthesis of NF+4 salts. Journal of Fluorine Chemistry. 1978-01, 11 (1): 71–85 [2020-05-29]. doi:10.1016/S0022-1139(00)81599-7. (原始内容存档于2018-07-01) (英语).
- ^ 4.0 4.1 Greg W. Drake, David A. Dixon, Jeffrey A. Sheehy, Jerry A. Boatz, Karl O. Christe. Seven-Coordinated Pnicogens. Synthesis and Characterization of the SbF 7 2- and BiF 7 2- Dianions and a Theoretical Study of the AsF 7 2- Dianion. Journal of the American Chemical Society. 1998-08, 120 (33): 8392–8400 [2020-05-29]. ISSN 0002-7863. doi:10.1021/ja9805728. (原始内容存档于2021-12-28) (英语).
- ^ Zoran Mazej, Evgeny Goreshnik. Crystal Growth and Characterization of the Mixed-Cation Rb + /[XeF 5 ] + and Cs + /[XeF 5 ] + Salts: Crystal Growth and Characterization of the Mixed-Cation Rb + /[XeF 5 ] + and Cs + /[XeF 5 ] + Salts. European Journal of Inorganic Chemistry. 2017-06-08, 2017 (21): 2800–2807 [2020-05-29]. doi:10.1002/ejic.201700097 (英语).
拓展阅读
- A. I. Popov, A. V. Scharabarin, V. F. Sukhoverkhov, N. A. Tchumaevsky. Synthesis and properties of pentavalent antimony and bismuth fluorides. Zeitschrift für anorganische und allgemeine Chemie. 1989-09, 576 (1): 242–254 [2020-05-29]. ISSN 0044-2313. doi:10.1002/zaac.19895760128. (原始内容存档于2020-06-09) (德语).