Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Chromium pentafluoride is the inorganic compound with the chemical formula CrF5.[3] It is a red volatile solid that melts at 34 °C.[1] It is the highest known chromium fluoride, since the hypothetical chromium hexafluoride has not yet been synthesized.[4]
Chromium pentafluoride is one of the products of the action of fluorine on a mixture of potassium and chromic chlorides.[5]
In terms of its structure, the compound is a one-dimensional coordination polymer. Each Cr(V) center has octahedral molecular geometry.[2] It has the same crystal structure as vanadium pentafluoride.[6]
Chromium pentafluoride is strongly oxidizing, able to fluorinate the noble gas xenon and oxidize dioxygen to dioxygenyl.[2] Due to this property, it decomposes readily in the presence of reducing agents, and easily hydrolyses to chromium(III) and chromium(VI).[7]
^ abPerry, Dale L. (2011). Handbook of Inorganic Compounds, Second Edition. Boca Raton, Florida: CRC Press. p. 125. ISBN 978-1-43981462-8. Retrieved 2014-01-10.
^ abcShorafa, H.; Seppelt, K. (2009). "The structures of CrF5 and CrF5*SbF5". Zeitschrift für anorganische und allgemeine Chemie. 635 (1): 112–114. doi:10.1002/zaac.200800378.
^Jacques Guertin; James A. Jacobs; Cynthia P. Avakian, eds. (2004). Chromium(VI) Handbook. CRC Press. p. 30. ISBN 9780203487969.
^Riedel, Sebastian; Kaupp, Martin (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.
^A. G. Sharpe (2012). J.H. Simons (ed.). Fluorine Chemistry. Vol. 2. Elsevier. p. 24. ISBN 9780323145435.
^A. G. Sharpe (1983). Advances in Inorganic Chemistry. Vol. 27. Academic Press. p. 103. ISBN 9780080578767.
^Amit Aora (2005). Text Book Of Inorganic Chemistry. Discovery Publishing House. p. 649.
and 30 Related for: Chromium pentafluoride information
Chromiumpentafluoride is the inorganic compound with the chemical formula CrF5. It is a red volatile solid that melts at 34 °C. It is the highest known...
misidentification of chromiumpentafluoride, CrF5. CrF6 used to be thought to be produced by exhaustive fluorination of chromium metal at 400 °C and 20 MPa...
base with noble gas difluorides. It also binds fluoride to give the pentafluoride. Christe, Karl O.; Wilson, William W.; Bougon, Roland A. (1986). "Synthesis...
chlorine, bromine, and iodine Hexavalent chromium compounds such as chromic and dichromic acids and chromium trioxide, pyridinium chlorochromate (PCC)...
fluorinating agent, behind only chlorine trifluoride, chlorine pentafluoride, and bromine pentafluoride among the interhalogens: it reacts with almost all the...
nitriles can be accomplished using a variety of reagents, such as iodine pentafluoride (IF 5).[citation needed] In typical aromatization, six-membered alicyclic...
stoichiometric reactions have been characterised. Arsenic pentafluoride and antimony pentafluoride form ionic adducts of the form [ClF4]+[MF6]− (M = As, Sb)...
liquid UN 1731 8 Antimony pentachloride, solution UN 1732 8 Antimony pentafluoride UN 1733 8 Antimony trichloride UN 1734 to 1735 ? (UN No.s no longer...
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...
Vanadium, niobium, and tantalum form pentafluorides as their highest charge-neutral fluoride. Vanadium pentafluoride is the only non-volatile high-charged...
has been shown to be unexpectedly stable at normal conditions. Gold pentafluoride, along with its derivative anion, AuF−6, and its difluorine complex...
period 2 onward, in compounds such as nitric acid HN(V)O3 and phosphorus pentafluoride PCl5. Higher oxidation states in later groups emerge from period 3 onwards...
basic. The pentafluorides of phosphorus, arsenic, and antimony are more reactive than their respective trifluorides, with antimony pentafluoride the strongest...
octaazacubane N8 (all nitrogen analog of cubane), cyclotrioxidane O3, nitrogen pentafluoride NF5, tetrafluoroammonium fluoride [NF4]+F−. Despite the fact that rhenium...
halogens. For oxidation states +4 and above, only the tetrafluoride, pentafluoride and hexafluoride are known. Iridium hexafluoride, IrF 6, is a volatile...
tetrafluorohydrazine with strong fluoride-acceptors such as arsenic pentafluoride), as is ONF3, which has aroused interest due to the short N–O distance...
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...
more well-known phosphorus compounds, and in fluorine to give arsenic pentafluoride. Arsenic makes arsenic acid with concentrated nitric acid, arsenous...
can be prepared by working in so-called superacids such as antimony pentafluoride. Although CO is considered generally as a ligand for low-valent metal...
forms a monofluoride and monochloride, as well as a trifluoride and pentafluoride. Some cationic and anionic derivatives are also characterised, such...
more stable than its lighter homologue gold(V) (known only in gold pentafluoride, Au2F10) as the 6d electrons participate in bonding to a greater extent...
and some properties of neptunium oxide tetrafluoride and neptunium pentafluoride". Radiokhimiya (in Russian). 20: 238–243. Seaborg, G. T. and Brown,...
and bismuth(V) fluoride to be more reactive than the other pnictogen pentafluorides, making it an extremely powerful fluorinating agent. This effect is...
link between the P and As (or P) atoms, linking the difluorides to the pentafluorides. Example salts include KPO2F2·2AsF5, KPO2F2·AsF5, KPO2F2·2PF5 and KPO2F2·PF5...
(s) → [RnF]+ [Sb 2F 11]− (s) + 2 O 2 (g) For this reason, antimony pentafluoride together with chlorine trifluoride and N 2F 2Sb 2F 11 have been considered...
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