Iridium(V) fluoride

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Iridium(V) fluoride
PtF5solid.tif
Unit cell of OsF5.png
Names
Other names
Iridium pentafluoride
Identifiers
3D model (JSmol)
  • InChI=1S/5FH.Ir/h5*1H;/q;;;;;+5/p-5
    Key: AVEYGPFFIPYHQT-UHFFFAOYSA-I
  • monomer:F[Ir](F)(F)(F)F
  • tetramer:F[Ir-]1(F)(F)(F)[F+][Ir-](F)(F)(F)(F)[F+][Ir-](F)(F)(F)(F)[F+][Ir-](F)(F)(F)(F)[F+]1
Properties
IrF5
Molar mass 287.209 g/mol
Appearanceyellow solid
Melting point 104.5 °C (220.1 °F; 377.6 K)
Related compounds
Other cations
Rhodium(V) fluoride, Osmium pentafluoride, Platinum(V) fluoride
Related compounds
Iridium(IV) fluoride, Iridium hexafluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Iridium(V) fluoride, IrF5, is a chemical compound of iridium and fluorine. A highly reactive yellow low melting solid, it has a tetrameric structure, Ir4F20, which contains octahedrally coordinated iridium atoms. [1] This structure is shared with RuF5 and OsF5. It can be prepared by the controlled decomposition of IrF6 [1] or the reduction of IrF6 with silicon powder or H2 in anhydrous HF. [2] [3]


See also

Related Research Articles

<span class="mw-page-title-main">Chlorine pentafluoride</span> Chemical compound

Chlorine pentafluoride is an interhalogen compound with formula ClF5. This colourless gas is a strong oxidant that was once a candidate oxidizer for rockets. The molecule adopts a square pyramidal structure with C4v symmetry, as confirmed by its high-resolution 19F NMR spectrum. It was first synthesized in 1963.

Antimony pentafluoride is the inorganic compound with the formula SbF5. This colourless, viscous liquid is a strong Lewis acid and a component of the superacid fluoroantimonic acid, formed upon mixing liquid HF with liquid SbF5 in 1:1 ratio. It is notable for its strong Lewis acidity and the ability to react with almost all known compounds.

<span class="mw-page-title-main">Selenium tetrafluoride</span> Chemical compound

Selenium tetrafluoride (SeF4) is an inorganic compound. It is a colourless liquid that reacts readily with water. It can be used as a fluorinating reagent in organic syntheses (fluorination of alcohols, carboxylic acids or carbonyl compounds) and has advantages over sulfur tetrafluoride in that milder conditions can be employed and it is a liquid rather than a gas.

<span class="mw-page-title-main">Tantalum(V) fluoride</span> Chemical compound

Tantalum(V) fluoride is the inorganic compound with the formula TaF5. It is one of the principal molecular compounds of tantalum. Characteristic of some other pentafluorides, the compound is volatile but exists as an oligomer in the solid state.

<span class="mw-page-title-main">Dioxygenyl</span> Chemical compound

The dioxygenyl ion, O+
2
, is a rarely-encountered oxycation in which both oxygen atoms have a formal oxidation state of +1/2. It is formally derived from oxygen by the removal of an electron:

<span class="mw-page-title-main">Manganese(IV) fluoride</span> Chemical compound

Manganese tetrafluoride, MnF4, is the highest fluoride of manganese. It is a powerful oxidizing agent and is used as a means of purifying elemental fluorine.

<span class="mw-page-title-main">Iridium tetrafluoride</span> Chemical compound

Iridium(IV) fluoride is a chemical compound of iridium and fluorine, with the chemical formula IrF4 and is a dark brown solid. Early reports of IrF4 prior to 1965 are questionable and appear to describe the compound IrF5. The solid can be prepared by reduction of IrF5 with iridium black or reduction with H2 in aqueous HF. The crystal structure of the solid is notable as it was the first example of a three-dimensional lattice structure found for a metal tetrafluoride and subsequently RhF4, PdF4 and PtF4 have been found to have the same structure. The structure has 6 coordinate, octahedral, iridium where two edges of the octahedra are shared and the two unshared fluorine atoms are cis to one another.

Dinitrogen difluoride is a chemical compound with the formula N2F2. It is a gas at room temperature, and was first identified in 1952 as the thermal decomposition product of the fluorine azide. It has the structure F−N=N−F and exists in both cis and trans isomers, as typical for diimides.

<span class="mw-page-title-main">Bismuth pentafluoride</span> Chemical compound

Bismuth pentafluoride is an inorganic compound with the formula BiF5. It is a white solid that is highly reactive. The compound is of interest to researchers but not of particular value.

<span class="mw-page-title-main">Potassium hexafluoronickelate(IV)</span> Chemical compound

Potassium hexafluoronickelate(IV) is an inorganic compound with the chemical formula K
2
NiF
6
. It can be produced through the reaction of potassium fluoride, nickel dichloride, and fluorine.

Chromium pentafluoride 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 chromium fluoride, since the hypothetical chromium hexafluoride has not yet been synthesized.

<span class="mw-page-title-main">Molybdenum(V) fluoride</span> Chemical compound

Molybdenum(V) fluoride is an inorganic compound with the formula MoF5. It is a hygroscopic yellow solid. Like most pentafluorides, it exists as a tetramer.

Neptunium(V) fluoride or neptunium pentafluoride is a chemical compound of neptunium and fluorine with the formula NpF5.

<span class="mw-page-title-main">Rhodium pentafluoride</span> 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.

<span class="mw-page-title-main">Hexafluoroarsenate</span> Chemical compound

The hexafluoroarsenate anion is a chemical species with formula AsF−6. Hexafluoroarsenate is relatively inert, being the conjugate base of the notional superacid hexafluoroarsenic acid.

<span class="mw-page-title-main">Protactinium(V) fluoride</span> Chemical compound

Protactinium(V) fluoride is a fluoride of protactinium with the chemical formula PaF5.

<span class="mw-page-title-main">Pertechnetyl fluoride</span> Chemical compound

Pertechnetyl fluoride is an inorganic compound, a salt of technetium and hydrofluoric acid with the chemical formula TcO
3
F
. The compound was originally synthesized by H. Selig and G. Malm in 1963.

Rhenium pentafluoride is a binary inorganic compound of rhenium and fluorine with the chemical formula ReF5. This is a salt of rhenium and hydrofluoric acid.

The fluoroantimonates are a family of polyatomic weakly coordinating anions composed of antimony and fluorine, consisting of the fluorine adducts of antimony pentafluoride, [(SbF5)nF]. They occur in the internal chemistry of fluoroantimonic acid.

References

  1. 1 2 Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier ISBN   0-12-352651-5
  2. Paine, Robert T.; Asprey, Larned B. (1975). "Reductive syntheses of transition metal fluoride compounds. Synthesis of rhenium, osmium, and iridium pentafluorides and tetrafluorides". Inorganic Chemistry. 14 (5): 1111–1113. doi:10.1021/ic50147a030.
  3. Bartlett, Neil; Rao, P. R. (1965). "Iridium pentafluoride". Chem. Commun. (12): 252–253. doi:10.1039/C19650000252.