Tungsten(VI) oxytetrafluoride

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Tungsten(VI) oxytetrafluoride
Tungsten oxide tetrafluoride.png
Identifiers
3D model (JSmol)
ChemSpider
PubChem CID
  • InChI=1S/4FH.O.W/h4*1H;;/q;;;;;+4/p-4
    Key: UZQPVNLRTKDHNK-UHFFFAOYSA-J
  • O=[W](F)(F)(F)F
Properties
WOF4
Molar mass 275.83 g/mol
Appearancecolourless crystals [1]
Density 5.07 g/cm3 [2]
Melting point 110 [2]  °C (230 °F; 383 K)
Boiling point 185 [2]  °C (365 °F; 458 K)
reacts [2]
Solubility soluble in chloroform [3]
sparingly soluble in carbon disulfide [3]
Structure
monoclinic
Related compounds
Other anions
Tungsten(VI) oxytetrachloride
Tungsten(VI) oxytetrabromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Tungsten(VI) oxytetrafluoride (W O F 4) is an inorganic chemical compound.

Contents

Preparation

Tungsten(VI) oxytetrafluoride can be synthesized by the reaction of fluorine and tungsten trioxide. [4]

It can also be obtained by reacting tungsten with a mixture of oxygen and fluorine at high temperatures. [1] Partial hydrolysis of tungsten hexafluoride will also produce WOF4. [5]

The reaction of tungsten(VI) oxytetrachloride and hydrogen fluoride will also produce WOF4. [3]

WOF4 can also prepared by the reaction of lead(II) fluoride and tungsten trioxide at 700 °C. [3]

Properties

Tungsten(VI) oxytetrafluoride is a colourless solid which hydrolyze into tungstic acid. [1] [5]

Solid WOF4 is previously assumed as a tetramer, [6] which was later questioned by spectroscopic investigations. In the gas state, this molecule has a monomeric structure. [7] It can form complexes with acetonitrile and other compounds. [8] [9]

Related Research Articles

<span class="mw-page-title-main">Hydrofluoric acid</span> Solution of hydrogen fluoride in water

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon). Elemental fluorine is produced from it. It is commonly used to etch glass and silicon wafers.

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

Uranium hexafluoride (UF
6), (sometimes called "hex") is an inorganic compound with the formula UF6. Uranium hexafluoride is a volatile white solid that reacts with water, releasing corrosive hydrofluoric acid. The compound reacts mildly with aluminium, forming a thin surface layer of AlF3 that resists any further reaction from the compound. UF6 is used in the process of enriching uranium, which produces fuel for nuclear reactors and nuclear weapons.

In chemistry, halogenation is a chemical reaction that entails the introduction of one or more halogens into a compound. Halide-containing compounds are pervasive, making this type of transformation important, e.g. in the production of polymers, drugs. This kind of conversion is in fact so common that a comprehensive overview is challenging. This article mainly deals with halogenation using elemental halogens (F2, Cl2, Br2, I2). Halides are also commonly introduced using salts of the halides and halogen acids. Many specialized reagents exist for and introducing halogens into diverse substrates, e.g. thionyl chloride.

Tungsten(VI) fluoride, also known as tungsten hexafluoride, is an inorganic compound with the formula WF6. It is a toxic, corrosive, colorless gas, with a density of about 13 kg/m3 (22 lb/cu yd) (roughly 11 times heavier than air). It is one of the densest known gases under standard conditions. WF6 ls commonly used by the semiconductor industry to form tungsten films, through the process of chemical vapor deposition. This layer is used in a low-resistivity metallic "interconnect". It is one of seventeen known binary hexafluorides.

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

Tungsten(VI) oxide, also known as tungsten trioxide is a chemical compound of oxygen and the transition metal tungsten, with formula WO3. The compound is also called tungstic anhydride, reflecting its relation to tungstic acid H2WO4. It is a light yellow crystalline solid.

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

Xenon hexafluoride is a noble gas compound with the formula XeF6. It is one of the three binary fluorides of xenon, the other two being XeF2 and XeF4. All known are exergonic and stable at normal temperatures. XeF6 is the strongest fluorinating agent of the series. It is a colorless solid that readily sublimes into intensely yellow vapors.

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

Silver(II) fluoride is a chemical compound with the formula AgF2. It is a rare example of a silver(II) compound. Silver usually exists in its +1 oxidation state. It is used as a fluorinating agent.

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

Hydrogen fluoride (fluorane) is an inorganic compound with the chemical formula HF. This colorless gas or liquid is the principal industrial source of fluorine, often as an aqueous solution called hydrofluoric acid. It is an important feedstock in the preparation of many important compounds including pharmaceuticals and polymers, e.g. polytetrafluoroethylene (PTFE). HF is widely used in the petrochemical industry as a component of superacids. Hydrogen fluoride boils at near room temperature, much higher than other hydrogen halides.

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

Xenon oxytetrafluoride is an inorganic chemical compound. It is a colorless stable liquid with a melting point of −46.2 °C that can be synthesized by partial hydrolysis of XeF
6, or the reaction of XeF
6 with silica or NaNO
3:

<span class="mw-page-title-main">Tungsten dichloride dioxide</span> Chemical compound

Tungsten dichloride dioxide, or Tungstyl chloride is the chemical compound with the formula WO2Cl2. It is a yellow-colored solid. It is used as a precursor to other tungsten compounds. Like other tungsten halides, WO2Cl2 is sensitive to moisture, undergoing hydrolysis.

<span class="mw-page-title-main">Tungsten(VI) oxytetrachloride</span> Chemical compound

Tungsten(VI) oxytetrachloride is the inorganic compound with the formula WOCl4. This diamagnetic solid is used to prepare other complexes of tungsten. The yellow-green compound is soluble in nonpolar solvents but it reacts with alcohols and water and forms adducts with Lewis bases.

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

Fluorine perchlorate, also called perchloryl hypofluorite is the rarely encountered chemical compound of fluorine, chlorine, and oxygen with the chemical formula ClO
4F or FOClO
3. It is an extremely unstable gas that explodes spontaneously and has a penetrating odor.

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

Molybdenum hexafluoride, also molybdenum(VI) fluoride, is the inorganic compound with the formula MoF6. It is the highest fluoride of molybdenum. It is a colourless solid and melts just below room temperature and boils in 34 °C. It is one of the seventeen known binary hexafluorides.

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

Chromyl fluoride is an inorganic compound with the formula CrO2F2. It is a violet-red colored crystalline solid that melts to an orange-red liquid.

In chemistry, molecular oxohalides (oxyhalides) are a group of chemical compounds in which both oxygen and halogen atoms are attached to another chemical element A in a single molecule. They have the general formula AOmXn, where X = fluorine (F), chlorine (Cl), bromine (Br), and/or iodine (I). The element A may be a main group element, a transition element or an actinide. The term oxohalide, or oxyhalide, may also refer to minerals and other crystalline substances with the same overall chemical formula, but having an ionic structure.

Fluorine forms a great variety of chemical compounds, within which it always adopts an oxidation state of −1. With other atoms, fluorine forms either polar covalent bonds or ionic bonds. Most frequently, covalent bonds involving fluorine atoms are single bonds, although at least two examples of a higher order bond exist. Fluoride may act as a bridging ligand between two metals in some complex molecules. Molecules containing fluorine may also exhibit hydrogen bonding. Fluorine's chemistry includes inorganic compounds formed with hydrogen, metals, nonmetals, and even noble gases; as well as a diverse set of organic compounds. For many elements the highest known oxidation state can be achieved in a fluoride. For some elements this is achieved exclusively in a fluoride, for others exclusively in an oxide; and for still others the highest oxidation states of oxides and fluorides are always equal.

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

Chromium(IV) fluoride is an inorganic compound with the chemical formula CrF4. It has a dark greenish-black color when solid. It rapidly hydrolysizes in presence of moisture in air or directly in water.

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

Actinium(III) fluoride (AcF3) is an inorganic compound, a salt of actinium and fluorine.

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

Lutetium(III) fluoride is an inorganic compound with a chemical formula LuF3.

<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.

References

  1. 1 2 3 Perry, Dale L.; Phillips, Sidney L. (1995). Handbook of inorganic compounds. Boca Raton: CRC Press. p. 428. ISBN   0-8493-8671-3. OCLC   32347397.
  2. 1 2 3 4 Haynes, William M.; Lide, David R.; Bruno, Thomas J. (2017). CRC handbook of chemistry and physics : a ready-reference book of chemical and physical data. Boca Raton, Florida. p. 104. ISBN   978-1-4987-5429-3. OCLC   957751024.
  3. 1 2 3 4 Lassner, Erik; Schubert, Wolf-Dieter (1999). Tungsten : Properties, Chemistry, Technology of the Element, Alloys, and Chemical Compounds. Boston, MA. p. 168. ISBN   1-4615-4907-8. OCLC   1113605323.
  4. ↑ Panwen Shen, Yunxia Che, Yuji Luo, et al (1998). 无机化学丛书 第八卷.(in Chinese) [lit. Series of Inorganic Chemistry, Vol.8]. Beijing: Science Press. pp 534
  5. 1 2 Mendicino, L.; Electrochemical Society. Dielectric Science and Technology Division; Electrochemical Society. Meeting; Symposium on Environmental Issues with Materials and Processes in the Electronics and Semiconductor Industries (2001). Environmental issues with materials and processes for the electronics and semiconductor industries : proceedings of the fourth international symposium. Pennington, NJ: Electrochemical Society. p. 180. ISBN   1-56677-312-1. OCLC   48710248.
  6. ↑ Lippard, Stephen J. (1981). Progress in inorganic chemistry. Volume 28. New York, N.Y.: Wiley. p. 245. ISBN   978-0-470-16679-6. OCLC   123541241.
  7. ↑ Johnson, B. F. G. (1976). Inorganic chemistry of the transition elements. Volume 4, A review of the literature published between October 1973 and September 1974. London: Chemical Society. p. 138. ISBN   978-1-84755-645-5. OCLC   820579758.
  8. ↑ Levason, William; Reid, Gillian; Zhang, Wenjian (2016). "Coordination complexes of the tungsten(VI) oxide fluorides WOF4 and WO2F2 with neutral oxygen- and nitrogen-donor ligands". Journal of Fluorine Chemistry. Elsevier BV. 184: 50–57. doi: 10.1016/j.jfluchem.2016.02.003 . ISSN   0022-1139.
  9. ↑ Arnaudet, Lucile; Bougon, Roland; Charpin, Pierrette; Isabey, Jacques; Lance, Monique; Nierlich, Martine; Vigner, Julien (1989). "Preparation, characterization, and crystal structure of the adducts WOF4.nC5H5N (n = 1, 2)". Inorganic Chemistry. American Chemical Society (ACS). 28 (2): 257–262. doi:10.1021/ic00301a020. ISSN   0020-1669.
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