Zirconyl chloride

Zirconyl chloride
Other names

basic zirconium chloride, dichlorooxozirconium, zirconium oxychloride,
Identifiers
CAS number 22196-48-1 Y
Properties
Molecular formula Cl2OZr
Molar mass 178.13 g mol−1
Appearance White crystals
Hazards
LD50 400 mg kg-1, rat (intraperitioneal)
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Zirconyl chloride is the inorganic compound with the formula [Zr4(OH)12(H2O)16]Cl8(H2O)12. Zirconyl chloride is a misnomer because the compound contains no oxide groups, but the term is widely used. This salt, a white solid, is the most common water-soluble derivative of zirconium.

Production and structure

The salts is produced by hydrolysis of zirconium tetrachloride. It adopts a tetrameric structure, consisting of the cation [Zr4(OH)8]8+. This cluster features four pairs of hydroxide bridging ligands linking four Zr4+ centers. The chloride anions are not ligands, consistent with the high oxophilicity of Zr(IV).[1] The salt crystallizes as tetragonal crystals.[2]

References

  1. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Oxford: Butterworth-Heinemann. ISBN 0080379419. 
  2. ^ T. W. Mak "Refinement of the crystal structure of zirconyl chloride octahydrate" Canadian Journal of Chemistry, 46, 3491 (1968) doi:10.1139/v68-579

External links