Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Rhodium pentafluoride is an inorganic compound with the formula Rh4F20. It is a red solid. It is prepared by fluorination of rhodium trifluoride at 400 °C.[1]
According to X-ray crystallography, the Rh centers are octahedral. The structure is very similar to that of the related ruthenium pentafluoride, osmium pentafluoride, and iridium pentafluoride. All are tetrameric, meaning that they have the molecular structure [MF5]4. The M-F distances for the bridging fluoride ligands are typically about 0.2 Å longer than the Rh-F distances for the nonbridging fluoride ligands. In the case of rhodium pentafluoride, these distances average 1.999(4) and 1.808(8) Å.[2] The Rh-F-Rh angles average 135°, which leads to a ruffled structure. In contrast, the M-F-M centers are linear in the pentafluorides of niobium, tantalum, molybdenum, and tungsten.
^Holloway, J. H.; Rao, P. R.; Bartlett, Neil (1965). "Quinquevalent rhodium compounds: RhF5 and CsRhF6". Chemical Communications (14): 306–7. doi:10.1039/c19650000306.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^Morrell, B. K.; Zalkin, A.; Tressaud, A.; Bartlett, N. (1973). "Crystal Structure of Rhodium Pentafluoride". Inorganic Chemistry. 12 (11): 2640–p2644. doi:10.1021/ic50129a029.{{cite journal}}: CS1 maint: multiple names: authors list (link)
and 27 Related for: Rhodium pentafluoride information
Rhodiumpentafluoride is an inorganic compound with the formula Rh4F20. It is a red solid. It is prepared by fluorination of rhodium trifluoride at 400 °C...
range of possible oxidation states. Rhodium(III) chloride, rhodium trifluoride, rhodiumpentafluoride and rhodium hexafluoride are examples. The lower...
salt can be added to form the organometallic pentamethylcyclopentadienyl rhodium dichloride and pentamethylcyclopentadienyl iridium dichloride dimers; consequently...
observed in the neighboring metals niobium (41), molybdenum (42), and rhodium (45). Ruthenium has four crystal modifications and does not tarnish at...
fluorinating agent, behind only chlorine trifluoride, chlorine pentafluoride, and bromine pentafluoride among the interhalogens: it reacts with almost all the...
and the non-volatile osmates for organic oxidation reactions. Osmium pentafluoride (OsF 5) is known, but osmium trifluoride (OsF 3) has not yet been synthesized...
halogens. For oxidation states +4 and above, only the tetrafluoride, pentafluoride and hexafluoride are known. Iridium hexafluoride, IrF 6, is a volatile...
at comparatively low temperatures. Heptafluorides, hexafluorides and pentafluorides have much lower boiling points than the lower-valence fluorides. Most...
mixture of lower ruthenium fluorides, releasing fluorine gas. Ruthenium pentafluoride is a tetrameric dark green solid that is also readily hydrolyzed, melting...
be prepared by direct reaction of hydrogen fluoride with phosphorus pentafluoride. It is a strong Brønsted acid that is typically generated in situ immediately...
100–120 °C to the trifluoride and the pentafluoride. The tetrafluorides of iridium, platinum, palladium, and rhodium all share the same structure which was...
stoichiometric reactions have been characterised. Arsenic pentafluoride and antimony pentafluoride form ionic adducts of the form [ClF4]+[MF6]− (M = As, Sb)...
extrapolated ionic against Allen electronegativities of rhodium and sulfur, yielding oxidation state +1 for rhodium: This algorithm works on Lewis structures and...
basic. The pentafluorides of phosphorus, arsenic, and antimony are more reactive than their respective trifluorides, with antimony pentafluoride the strongest...
tetrafluorohydrazine with strong fluoride-acceptors such as arsenic pentafluoride), as is ONF3, which has aroused interest due to the short N–O distance...
reported, but has been shown to be a mistaken identification of the known pentafluoride (CrF 5). Galkin, N. P.; Tumanov, Yu. N. (1971). "Reactivity and Thermal...
has been shown to be unexpectedly stable at normal conditions. Gold pentafluoride, along with its derivative anion, AuF−6, and its difluorine complex...
forms a monofluoride and monochloride, as well as a trifluoride and pentafluoride. Some cationic and anionic derivatives are also characterised, such...
more well-known phosphorus compounds, and in fluorine to give arsenic pentafluoride. Arsenic makes arsenic acid with concentrated nitric acid, arsenous...
tetrafluorohydrazine with strong fluoride-acceptors such as arsenic pentafluoride), as is ONF3, which has aroused interest due to the short N–O distance...
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