Octafluoride
An octafluoride is a compound or ion with the formula RnMxF8y− or RnMxF8y+, where n, x, and y are independent variables and R any substituent and M is a central element (often a metal). All of the examples listed below are MxF8y− with x=1 and y between 1 and 4 inclusive.
Neutral octafluorides[]
No electrically neutral octafluorides are currently known to exist, although osmium octafluoride, OsF8, is theoretically possible. An early report of the synthesis of OsF8 was much later shown to be a mistaken identification of OsF6.[1]
Anionic octafluorides[]
In contrast, many anionic octafluorides are known, such as the octafluorozirconate (ZrF84−), octafluorotantalate (TaF83−), octafluoroniobate (NbF83−),[1] octafluoromolybdate (MoF82−),[1] octafluorotungstate (WF82−),[1] octafluororhenate (ReF8−),[1] octafluoroiodate (IF8−), Iridium octafluoride (IrF8−),[2] and octafluoroxenate (XeF82−) anions.
References[]
- ^ a b c d e Riedel, S.; Kaupp, M. (30 Jul 2009). "The highest oxidation states of the transition metal elements". Coordination Chemistry Reviews. 253 (5–6): 606–624. doi:10.1016/j.ccr.2008.07.014.
- ^ Jianyan Lin, Ziyuan Zhao, Chunyu Liu, Jing Zhang, Xin Du, Guochun Yang, and Yanming Ma (March 13, 2019). "IrF8 Molecular Crystal under High Pressure". J. Am. Chem. Soc. 141 (13): 5409–5414.CS1 maint: multiple names: authors list (link)
- Fluorides