Tungsten(III) chloride

Last updated
Tungsten(III) chloride
  • 12371-22-1 Yes check.svgY
3D model (JSmol)
PubChem CID
  • InChI=1S/3ClH.W/h3*1H;/q;;;+3/p-3
  • Cl[W](Cl)Cl
Molar mass 1741.14 g·mol−1
Appearanceyellow brown solid
Density 5.44 g·cm−3
Melting point 550 [1]  °C (1,022 °F; 823 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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. [2] 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.

A related mixed valence W(III)-W(IV) chloride is prepared by reduction of the hexachloride with bismuth: [3]

9 WCl6 + 8 Bi → 3 W3Cl10 + 8 BiCl3

Related Research Articles

Chromium(III) chloride Chemical compound

Chromium(III) chloride (also called chromic chloride) describes any of several compounds of with the formula CrCl3 • xH2O, where x can be 0, 5, and 6. The anhydrous compound with the formula CrCl3 is a violet solid. The most common form of the trichloride is the dark green hexahydrate, CrCl3 • 6H2O. Chromium chlorides find use as catalysts and as precursors to dyes for wool.

Iron(II) chloride Chemical compound

Iron(II) chloride, also known as ferrous chloride, is the chemical compound of formula FeCl2. It is a paramagnetic solid with a high melting point. The compound is white, but typical samples are often off-white. FeCl2 crystallizes from water as the greenish tetrahydrate, which is the form that is most commonly encountered in commerce and the laboratory. There is also a dihydrate. The compound is highly soluble in water, giving pale green solutions.

Niobium(V) chloride Chemical compound

Niobium(V) chloride, also known as niobium pentachloride, is a yellow crystalline solid. It hydrolyzes in air, and samples are often contaminated with small amounts of NbOCl3. It is often used as a precursor to other compounds of niobium. NbCl5 may be purified by sublimation.

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.

Tantalum(V) chloride Chemical compound

Tantalum(V) chloride, also known as tantalum pentachloride, is an inorganic compound with the formula TaCl5. It takes the form of a white powder and is commonly used as a starting material in tantalum chemistry. It readily hydrolyzes to form tantalum(V) oxychloride (TaOCl3) and eventually tantalum pentoxide (Ta2O5); this requires that it be synthesised and manipulated under anhydrous conditions, using air-free techniques.

Molybdenum(V) chloride Chemical compound

Molybdenum(V) chloride is the inorganic compound with the formula [MoCl5]2. This dark volatile solid is used in research to prepare other molybdenum compounds. It is moisture-sensitive and soluble in chlorinated solvents. Usually called molybdenum pentachloride, it is in fact a dimer with the formula Mo2Cl10.

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

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

Chloro(triphenylphosphine)gold(I) Chemical compound

Chloro(triphenylphosphine)gold(I) or triphenylphosphinegold(I) chloride is a coordination complex with the formula (Ph3P)AuCl. This colorless solid is a common reagent for research on gold compounds.

Molybdenum(II) chloride Chemical compound

Molybdenum dichloride describes chemical compounds with the empirical formula MoCl2. At least two forms are known, and both have attracted much attention from academic researchers because of the unexpected structures seen for these compounds and the fact that they give rise to hundreds of derivatives. The form discussed here is Mo6Cl12. The other molybdenum(II) chloride is potassium octachlorodimolybdate.

Molybdenum tetrachloride Chemical compound

Molybdenum tetrachloride is the inorganic compound with the empirical formula MoCl4. The material exists as two polymorphs, a polymeric ("α") and a hexameric ("β") structure. In each polymorph, the Mo center is octahedral with two terminal chloride ligands and four doubly bridging ligands.

Sodium <i>tert</i>-butoxide Chemical compound

Sodium tert-butoxide is the chemical compound with the formula (CH3)3CONa. It is a strong base and a non-nucleophilic base. It is flammable and moisture sensitive. It is sometimes written in chemical literature as sodium t-butoxide. It is similar in reactivity to the more common potassium tert-butoxide.

Molybdenum(III) chloride Chemical compound

Molybdenum(III) chloride is the inorganic compound with the formula MoCl3. It forms purple crystals.

Tungsten(IV) chloride is an inorganic compound with the formula WCl4. It is a diamagnetic black solid. The compound is of interest in research as one of a handful of binary tungsten chlorides.

Bis(benzonitrile)palladium dichloride Chemical compound

Bis(benzonitrile)palladium dichloride is the coordination complex with the formula PdCl2(NCC6H5)2. It is the adduct of two benzonitrile (PhCN) ligands with palladium(II) chloride. It is a yellow-brown solid that is soluble in organic solvents. The compound is a reagent and a precatalyst for reactions that require soluble Pd(II). A closely related compound is bis(acetonitrile)palladium dichloride.

Tungsten(II) chloride Chemical compound

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. The structural chemistry resembles that observed for molybdenum(II) chloride.

Molybdenum(VI) chloride Chemical compound

Molybdenum(VI) chloride is the inorganic compound with the formula MoCl6. It is a black diamagnetic solid. The molecules adopt an octahedral structure as seen in β-tungsten(VI) chloride.

Rhenium(VI) chloride Chemical compound

Rhenium(VI) chloride is the inorganic compound with the formula ReCl6. It is a black paramagnetic solid. The molecules adopt an octahedral structure as seen in tungsten(VI) chloride.

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.

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. Eliseev, S. S.; Synthesis and physicochemical properties of tungsten trichloride. Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy 1983, V19(7), P1182-5 CAPLUS
  2. Yue‐Qing Zheng, Ekaterina Jonas, Jürgen Nuss, Hans Georg von Schnering (1999). "The DMSO Solvated octahedro‐[W6iCl12aCl6 Cluster Molecule". Z. Anorg. Allg. Chem. 624: 1400–1404. doi:10.1002/(SICI)1521-3749(199809)624:9<1400::AID-ZAAC1400>3.0.CO;2-0.CS1 maint: uses authors parameter (link)
  3. Thurston, J. H.; Kolesnichenko, V.; Messerle, L. (2014). Trinuclear tungsten halide clusters. Inorg. Synth. Inorganic Syntheses. 36. pp. 24–30. doi:10.1002/9781118744994.ch5. ISBN   9781118744994.CS1 maint: uses authors parameter (link)