Tungsten(II) chloride

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Tungsten(II) chloride
  • 12052-19-6 Yes check.svgY
3D model (JSmol)
PubChem CID
  • InChI=1S/2ClH.W/h2*1H;/q;;+2/p-2
  • [Cl-].[Cl-].[W+2]
Molar mass 1528.44 g·mol−1
Appearanceyellow brown solid
Density 5.44 g·cm−3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tungsten(II) chloride is the inorganic compound with the formula W6Cl12. It is a polymeric cluster compound. The material dissolves in concentrated hydrochloric acid, forming (H3O)2[W6Cl14](H2O)x. Heating this salt gives yellow-brown W6Cl12. [1] The structural chemistry resembles that observed for molybdenum(II) chloride.

Tungsten(II) chloride is prepared by reduction of the hexachloride. Bismuth is a typical reductant:

6 WCl6 + 8 Bi → W6Cl12 + 8 BiCl3
Structure of the cluster anion [W6Cl14] Mo6Cl14-anion-from-xtal-2008-CM-3D-ellipsoids.png
Structure of the cluster anion [W6Cl14]

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Chromium(III) chloride Chemical compound

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Iron(II) chloride Chemical compound

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Palladium(II) chloride Chemical compound

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Octahedral clusters are inorganic or organometallic cluster compounds composed of six metals in an octahedral array. Many types of compounds are known, but all are synthetic.

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Tungsten hexachloride Chemical compound

Tungsten hexachloride is the chemical compound of tungsten and chlorine with the formula WCl6. This dark violet blue species exists as a volatile solid under standard conditions. It is an important starting reagent in the preparation of tungsten compounds. Other examples of charge-neutral hexachlorides are ReCl6 and MoCl6. The highly volatile WF6 is also known.

Tungsten(V) chloride Chemical compound

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Tungsten dichloride dioxide Chemical compound

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Molybdenum(II) chloride Chemical compound

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Molybdenum tetrachloride Chemical compound

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Tungsten(III) chloride Chemical compound

Tungsten(III) chloride is the inorganic compound with the formula W6Cl18. It is a cluster compound. It is a brown solid, obtainable by chlorination of tungsten(II) chloride. Featuring twelve doubly bridging chloride ligands, the cluster adopts a structure related to the corresponding chlorides of niobium and tantalum. In contrast, W6Cl12 features eight triply bridging chlorides.

Tantalum(III) chloride Chemical compound

Tantalum(III) chloride or tantalum trichloride is non-stoichiometric with a range of composition from TaCl2.9 to TaCl3.1 Anionic and neutral clusters containing Ta(III) chloride include [Ta6Cl18]4− and [Ta6Cl14](H2O)4.

Hexa(tert-butoxy)ditungsten(III) Chemical compound

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Transition metal chloride complex Coordination complex

In chemistry, a transition metal chloride complex is a coordination complex that consists of a transition metal coordinated to one or more chloride ligand. The class of complexes is extensive.


  1. Nolting, D. D.; Messerle, L. (2014). "Octahedral hexatungsten halide clusters". Inorganic Syntheses: Volume 36. Inorg. Synth. Inorganic Syntheses. 36. pp. 19–23. doi:10.1002/9781118744994.ch4. ISBN   9781118744994.CS1 maint: uses authors parameter (link)