Tetrachlorozincate

Tetrachlorozincate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
  • InChI=1S/4ClH.Zn/h4*1H;/q;;;;+2/p-4
    Key: PZVVXRYHDITUNJ-UHFFFAOYSA-J
  • Cl[Zn-2](Cl)(Cl)Cl
Properties
[ZnCl4]2−
Molar mass 207.18 g·mol−1
Related compounds
Other anions
Tetrafluorozincate
Other cations
Tetrachlorocuprate
Tetrachloronickelate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tetrachlorozincate is an anion with the formula [ZnCl4]2−. It is a counterion that is often used in conjunction with strong electrophiles. Being dianionic, tetrachlorozincate is not classified as a weakly coordinating anion. On the other hand, being dianionic, tetrachlorozincate facilitates the crystallization of many salts. It has a tetrahedral molecular geometry. A simple example is [NH4]2[ZnCl4] (ammonium tetrachlorozincate). Zincates are anionic zinc complexes.

Related to the preparation of Lucas' reagent, tetrachlorozincates are often generated by combining hydrochloric acid and zinc chloride.

A related anion is [Zn2Cl6]2−, in which again Zn(II) adopts a tetrahedral geometry.