Structural Data
Erbium chloride forms crystals of the AlCl3 type, with monoclinic crystals and the point group C2/m.
Erbium(III) chloride hexahydrate also forms monoclinic crystals with the point group of P2/n (P2/c) - C42h. The erbium is octa-coordinated to form + ions with the isolated Cl− completing the structure.
Read more about this topic: Erbium(III) Chloride
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