Tetrachlorozincate
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. The anion is tetrahedral. Zincates are anionic zinc complexes.
![](../I/ACNNIZ.png.webp)
Portion of the crystal structure of the tetrachlorozincate (ZnCl42−) salt of [Ni(MeCN)6]2+.[1]
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.
![](../I/CANZUM10.png.webp)
The structure of [Zn2Cl6]2−.[2]
References
- I. Sotofte, R. G. Hazell, S. E. Rasmussen (1976). "Hexaacetonitrilenickel(II) tetrachlorozincate. A crystal structure with serious overlap in the Patterson function". Acta Crystallographica Section B. 32: 1692. doi:10.1107/S0567740876006249.CS1 maint: uses authors parameter (link)
- F. A. Cotton, S.A.Duraj, W.J.Roth (1985). "Two Compounds Containing the Tris(μ-chloro)hexakis(tetrahydrofuran)divanadium(II) Cation. Preparation, Structures, and Spectroscopic Characterization". Inorg. Chem. 24: 913. doi:10.1021/ic00200a023.CS1 maint: uses authors parameter (link)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.