| 词条 | Actinium fluoride |
| 释义 |
| Watchedfields = changed | verifiedrevid = 443382196 | Name = Actinium fluoride | ImageFile = Kristallstruktur Lanthanfluorid.png | ImageFile2 = | ImageCaption = Crystal structure | OtherNames = Actinium(III) fluoride Actinium trifluoride |Section1={{Chembox Identifiers | InChI = 1/Ac.3FH/h;3*1H/q+3;;;/p-3 | ChEBI_Ref = {{ebicite|correct|EBI}} | ChEBI = | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/Ac.3FH/h;3*1H/q+3;;;/p-3 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = | SMILES = F[Ac](F)F | InChIKey = | CASNo = 33689-80-4 | CASNo_Ref = {{cascite|correct|CAS}} | CASNo1_Ref = {{cascite|correct|??}} | PubChem = 101943120 | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = | RTECS = |Section2={{Chembox Properties | Formula = AcF3 | MolarMass = 284 g/mol[1] | Appearance = white, crystalline solid | Density = 7.88 g/cm3[1] | Solubility = | MeltingPtC = | MeltingPt_notes = | MeltingPt_ref = | RefractIndex = | MagSus = |Section3={{Chembox Structure | CrystalStruct = Rhombohedral, hR24 | SpaceGroup = P{{overline|3}}c1, No. 165[2] | LattConst_a = 0.741 nm | LattConst_c = 0.755 nm | UnitCellFormulas = 6 | UnitCellVolume =0.35902 }} Actinium fluoride (AcF3) is an inorganic compound of actinium and fluorine. SynthesisActinium fluoride can be prepared in solution or by a solid-state reaction. In the first method, actinium hydroxide is treated with hydrofluoric acid and the product precipitates:[3]
In the solid-state reaction, actinium metal is treated with hydrogen fluoride gas at 700 °C in a platinum crucible.[4][5] PropertiesActinium fluoride is a white solid that reacts with ammonia at 900–1000 °C to yield an actinium oxyfluoride:
While lanthanum oxyfluoride is easily formed by heating lanthanum fluoride in air, a similar treatment merely melts actinium fluoride and does not yield AcOF.[4][5] References1. ^1 {{RubberBible92nd|page=4.44}} {{fluorine compounds}}{{Authority control}}2. ^{{cite journal|doi=10.1107/S0365110X49001016|title=Crystal chemical studies of the 5f-series of elements. XII. New compounds representing known structure types|journal=Acta Crystallographica|volume=2|issue=6|pages=388|year=1949|last1=Zachariasen|first1=W. H.}} 3. ^{{cite book| title = The Chemistry of the Actinide and Transactinide Elements| editor1-last = Morss|editor2-first = Norman M.| editor2-last = Edelstein| editor3-last = Fuger|editor3-first = Jean| last = Haire|first = Richard G.| publisher = Springer Science+Business Media| year = 2006| isbn = 1-4020-3555-1| location = Dordrecht, The Netherlands| edition = 3rd|page= 36|chapter=Actinium}} 4. ^1 {{cite journal|doi=10.1021/ja01158a034|title=The Preparation and Identification of Some Pure Actinium Compounds|journal=Journal of the American Chemical Society|volume=72|issue=2|pages=771|year=1950|last1=Fried|first1=Sherman|last2=Hagemann|first2=French|last3=Zachariasen|first3=W. H.}} 5. ^1 Meyer, Gerd and Morss, Lester R. (1991) Synthesis of lanthanide and actinide compounds. Springer. {{ISBN|0-7923-1018-7}}. pp. 87–88 3 : Actinium compounds|Fluorides|Metal halides |
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