Tungsten(II) chloride is the

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

with the formula W₆Cl₁₂. It is a

polymer A polymer () is a chemical substance, substance or material that consists of very large molecules, or macromolecules, that are constituted by many repeat unit, repeating subunits derived from one or more species of monomers. Due to their br ...

cluster compound Nanoclusters are atomically precise, crystalline materials most often existing on the 0-2 nanometer scale. They are often considered kinetically stable intermediates that form during the synthesis of comparatively larger materials such as semic ...

. The material dissolves in concentrated

hydrochloric acid Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungency, pungent smell. It is classified as a acid strength, strong acid. It is ...

, forming (H₃O)₂ ₆Cl₁₄H₂O)_x. Heating this salt gives yellow-brown W₆Cl₁₂. The structural chemistry resembles that observed for

molybdenum(II) chloride 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 t ...

. Tungsten(II) chloride is prepared by reduction of the hexachloride. Bismuth is a typical reductant: :6 WCl₆ + 8 Bi → W₆Cl₁₂ + 8 BiCl₃ :.

References

{{Chlorides Tungsten halides Chlorides Octahedral compounds