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compare the structures of KCuCl3 and KMgF3. draw the double octahedral chain of KCuCl3 and confirm...

compare the structures of KCuCl3 and KMgF3. draw the double octahedral chain of KCuCl3 and confirm the stoichiometry from the model.

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Answer #1

KCuCl3 is prepared by mixing CuCl2 and KCl, followed by the precipitation of the desired product. This salt is a complex halide. Our complex chloride can be thought of as K+ and CuCl3-; although this is not quite correct.

KCuCl3, consists of infinite chains of distorted octahedra of CuCl6 sharing opposite and adjacent edges. This forms a double chain of octahedra held together by the positive K+ ions. The octahedra of Chlorines about each Copper is not symmetrical. Four chlorines are at equivalent distances and two are slightly further away.

KMgF3 is another complex halide compound it has a very different structure

The structure of KCuCl3 is like a chain

Small black and white atoms represent Cu and Cl respectively while the large gray atoms represent K

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