Tungsten(V) chloride
File:Tungsten(V) chloride.jpg
Other names	tungsten pentachloride
Identifiers
CAS number	13470-14-9
Properties
Molecular formula	WCl5
Molar mass	361.1 g/mol
Appearance	black crystals hygroscopic
Density	, solid
Melting point	248 °C
Boiling point	275.6 °C
Hazards
EU classification	not listed
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Tungsten(V) chloride is an inorganic compound with the formula W₂Cl₁₀. This compound is analogous in many ways to the more familiar molybdenum pentachloride.

The material is prepared by reduction of tungsten hexachloride. One method involves the use of tetrachloroethylene as the reductant:^[1]

2 WCl₆ + C₂Cl₄ → W₂Cl₁₀ + C₂Cl₆

The blue green solid is volatile under vacuum and slightly soluble in nonpolar solvents. The compound is oxophilic and is highly reactive toward Lewis bases.

The compound exists as a dimer, with a pair of octahedral tungsten(V) centres bridged by two chloride ligands.

[edit] References

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