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| verifiedrevid = 265813577 |
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| verifiedrevid = 428739426 |
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| Name = Tungsten(VI) oxytetrafluoride |
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| Name = Tungsten(VI) oxytetrafluoride |
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| ImageFile = Tungsten(VI)_oxytetrafluoride.jpg |
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| ImageFile = WOF4 structure.svg |
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| ImageName = Tungsten(VI) oxytetrafluoride |
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| ImageName = Tungsten(VI) oxytetrafluoride |
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| OtherNames = |
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| Section1 = {{Chembox Identifiers |
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| Section1 = {{Chembox Identifiers |
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| CASNo_Ref = {{cascite|correct|??}} |
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| CASNo = 13520-79-1 |
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| CASNo = 13520-79-1 |
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| ChemSpiderID = 10329780 |
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| PubChem = 139487 |
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| PubChem_Comment = formula error |
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| StdInChI = 1S/4FH.O.W/h4*1H;;/q;;;;;+4/p-4 |
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| StdInChIKey = UZQPVNLRTKDHNK-UHFFFAOYSA-J |
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| SMILES = O=(F)(F)(F)F |
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| Section2 = {{Chembox Properties |
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| Section2 = {{Chembox Properties |
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| Formula = WOF<sub>4</sub> |
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| Formula = WOF<sub>4</sub> |
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| MolarMass = 275.83 g/mol |
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| MolarMass = 275.83 g/mol |
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| Appearance = colourless crystals<ref name="Dale L. Perry">{{cite book | last1=Perry | first1=Dale L. | last2=Phillips | first2=Sidney L. | title=Handbook of inorganic compounds | publisher=CRC Press | publication-place=Boca Raton | date=1995 | isbn=0-8493-8671-3 | oclc=32347397 |page=428}}</ref> |
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| Appearance = white crystals |
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| Density = 5.07 g/cm<sup>3</sup><ref name="William M. Haynes">{{cite book | last1=Haynes | first1=William M. | last2=Lide | first2=David R. | last3=Bruno | first3=Thomas J. | title=CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. | publication-place=Boca Raton, Florida | date=2017 | isbn=978-1-4987-5429-3 | oclc=957751024 |page=104}}</ref> |
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| Density = 5.07 g/cm³, solid |
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| MeltingPtC = 110<ref name="William M. Haynes" /> |
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| MeltingPt = 1006°C |
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| BoilingPtC = 185<ref name="William M. Haynes" /> |
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| BoilingPt = 1086°C |
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| Solubility = reacts |
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| Solubility = reacts<ref name="William M. Haynes" /> |
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|SolubleOther=soluble in ]<ref name="Erik Lassner, Wolf-Dieter Schubert" /><br />sparingly soluble in ]<ref name="Erik Lassner, Wolf-Dieter Schubert" /> |
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| OtherAnions = ]<br />] |
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'''Tungsten(VI) oxytetrafluoride''' (]]]<sub>4</sub>) is an ] ]. |
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'''Tungsten oxytetrafluoride''' is an ] with the formula WOF<sub>4</sub>. It is a colorless diamagnetic solid. The compound is one of many oxides of tungsten. It is usually encountered as product of the partial hydrolysis of ]. |
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==Structure== |
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As confirmed by ], WOF<sub>4</sub> crystallizes as a ]. The oxides are terminal, and four of the fluorides are ].<ref name=IC>{{cite journal |doi=10.1021/acs.inorgchem.0c02783 |title=Reactions of Molybdenum and Tungsten Oxide Tetrafluoride with Sulfur(IV) Lewis Bases: Structure and Bonding in [WOF4]4, MOF4(OSO), and [SF3][M2O2F9] (M = Mo, W) |year=2020 |last1=Turnbull |first1=Douglas |last2=Chaudhary |first2=Praveen |last3=Leenstra |first3=Dakota |last4=Hazendonk |first4=Paul |last5=Wetmore |first5=Stacey D. |last6=Gerken |first6=Michael |journal=Inorganic Chemistry |volume=59 |issue=23 |pages=17544–17554 |pmid=33200611 |s2cid=226989898 }}</ref> Its structure is similar to those for ] and ]. In contrast, ] adopts a polymeric structure, although again the fluorides bridge and the oxides are terminal.<ref>{{cite journal |doi=10.1039/j19680002503 |title=Fluoride crystal structures. Part II. Molybdenum oxide tetrafluoride |year=1968 |last1=Edwards |first1=A. J. |last2=Steventon |first2=B. R. |journal=Journal of the Chemical Society A: Inorganic, Physical, Theoretical |page=2503 }}</ref> |
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In the gas state, this molecule is a monomer.<ref name="B. F. G. Johnson">{{cite book | last=Johnson | first=B. F. G. | title=Inorganic chemistry of the transition elements. Volume 4, A review of the literature published between October 1973 and September 1974 | publisher=Chemical Society | publication-place=London | date=1976 | isbn=978-1-84755-645-5 | oclc=820579758 |page=138}}</ref> It can form complexes with ] and other compounds.<ref>{{cite journal | last1=Levason | first1=William | last2=Reid | first2=Gillian | last3=Zhang | first3=Wenjian | title=Coordination complexes of the tungsten(VI) oxide fluorides WOF4 and WO2F2 with neutral oxygen- and nitrogen-donor ligands | journal=Journal of Fluorine Chemistry | publisher=Elsevier BV | volume=184 | year=2016 | issn=0022-1139 | doi=10.1016/j.jfluchem.2016.02.003 | pages=50–57| doi-access=free }}</ref><ref>{{cite journal | last1=Arnaudet | first1=Lucile | last2=Bougon | first2=Roland | last3=Charpin | first3=Pierrette | last4=Isabey | first4=Jacques | last5=Lance | first5=Monique | last6=Nierlich | first6=Martine | last7=Vigner | first7=Julien | title=Preparation, characterization, and crystal structure of the adducts WOF4.nC5H5N (n = 1, 2) | journal=Inorganic Chemistry | publisher=American Chemical Society (ACS) | volume=28 | issue=2 | year=1989 | issn=0020-1669 | doi=10.1021/ic00301a020 | pages=257–262}}</ref> |
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== Preparation == |
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Tungsten(VI) oxytetrafluoride can be synthesized by the reaction of ] and ].<ref name=IC/> |
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It can also be obtained by treating tungsten with a mixture of ] and ] at high temperatures.<ref name="Dale L. Perry" /> Partial hydrolysis of ] will also produce WOF<sub>4</sub>.<ref name="Laura Mendicino">{{cite book | last=Mendicino | first=L. | author2=Electrochemical Society. Dielectric Science and Technology Division | author3=Electrochemical Society. Meeting | author4=Symposium on Environmental Issues with Materials and Processes in the Electronics and Semiconductor Industries | title=Environmental issues with materials and processes for the electronics and semiconductor industries : proceedings of the fourth international symposium | publisher=Electrochemical Society | publication-place=Pennington, NJ | date=2001 | isbn=1-56677-312-1 | oclc=48710248 |page=180}}</ref> |
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:{{chem2|WF6 + H2O -> WOF4 + 2 HF}} |
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The reaction of ] and ] will also produce WOF<sub>4</sub>.<ref name="Erik Lassner, Wolf-Dieter Schubert">{{cite book | last1=Lassner | first1=Erik | last2=Schubert | first2=Wolf-Dieter | title=Tungsten : Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds | publication-place=Boston, MA | date=1999 | isbn=1-4615-4907-8 | oclc=1113605323 |page=168}}</ref> |
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:{{chem2|WOCl4 + 4HF -> WOF4 + 4HCl}} |
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WOF<sub>4</sub> can also prepared by the reaction of ] and ] at 700 °C.<ref name="Erik Lassner, Wolf-Dieter Schubert" /> |
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:{{chem2|2PbF2 + WO3 -> WOF4 + 2PbO}} |
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Tungsten(VI) oxytetrafluoride hydrolyzes into ].<ref name="Dale L. Perry" /><ref name="Laura Mendicino" /> |
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:{{chem2|WOF4 + 2 H2O -> WO3 + 4 HF}} |
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==References== |
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==References== |
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{{Unreferenced|date =September 2007}} |
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{{reflist}} |
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{{reflist}} |
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{{Tungsten compounds}} |
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{{Tungsten compounds}} |
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{{Fluorine compounds}} |
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{{inorganic-compound-stub}} |
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