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Tetrachlorozincate
Chemical compound From Wikipedia, the free encyclopedia
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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).[1] 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.[2]


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