| 词条 | Iridium tetrafluoride |
| 释义 |
| verifiedrevid = 362820202 | ImageFile = | ImageSize = | IUPACName = | OtherNames = Iridium tetrafluoride |Section1={{Chembox Identifiers | CASNo = 37501-24-9 | PubChem = 15771758 | StdInChI=1S/4FH.Ir/h4*1H;/q;;;;+4/p-4 | StdInChIKey = WOJCGZMITDEZTA-UHFFFAOYSA-J | SMILES = F[Ir](F)(F)F |Section2={{Chembox Properties | Formula = IrF4 | MolarMass = 268.2109 g/mol | Appearance = dark brown solid | Density = | MeltingPt = | BoilingPt = | Solubility = }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} |Section4={{Chembox Related | OtherAnions = iridium dioxide | OtherCations = sodium fluoride, potassium fluoride, caesium fluoride, calcium fluoride | OtherCompounds = iridium(V) fluoride }} }} Iridium(IV) fluoride is a chemical compound of iridium and fluorine, with the chemical formula IrF4 and is a dark brown solid.[1] Early reports of IrF4 prior to 1965 are questionable and appear to describe the compound IrF5.[1] The solid can be prepared by reduction of IrF5 with iridium black[1] or reduction with H2 in aqueous HF[2] 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.[3] 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.[3] References1. ^1 2 {{Greenwood&Earnshaw}} {{Iridium compounds}}2. ^{{cite journal | title = Reductive syntheses of transition metal fluoride compounds. Synthesis of rhenium, osmium, and iridium pentafluorides and tetrafluorides | journal = Inorg. Chem. | volume = 14 | issue = 5 | year = 1975 | pages = 1111–1113 | doi = 10.1021/ic50147a030 | last1 = Paine | first1 = Robert T. | last2 = Asprey | first2 = Larned B.}} 3. ^1 Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications {{ISBN|0-19-855370-6}} 3 : Iridium compounds|Fluorides|Metal halides |
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