In the crystalline structure of blue vitriol (), the five water molecules are not bound identically. How exactly are these five hydration water molecules spatially associated within the lattice?

Question

In the crystalline structure of blue vitriol ($CuSO_4 \cdot 5H_2O$), the five water molecules are not bound identically. How exactly are these five hydration water molecules spatially associated within the lattice?

Prashant Kotian · Accepted Answer

Correct answer: C. In , four water molecules act as ligands directly coordinating to the Copper(II) ion. The fifth water molecule sits outside the coordination sphere and is held exclusively by hydrogen bonding to the sulfate oxygen atoms and the coordinated water molecules.

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