What is the difference between coordination entity and coordination sphere -

In coordination compounds, the central metal atom alongwith the ions or ligands, attached to it are known as coordination entity. For example [CoCl3(NH3)3], th ...

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Standard XII

Chemistry

Crystal Lattice and Unit Cell

What is the d...

Question

What is the difference between the coordination entity and the coordination sphere?

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Solution

Coordination entity Coordination sphere
The coordination entity is the component of a coordination compound that includes the central atom and the ligands surrounding this central atom.
The electrical charge of a coordination compound is not mentioned in the coordination entity.
Example: $F e (C N)_{6}$
The coordination sphere is the collection of components of a coordination compound that includes the central atom and the ligands surrounding this central atom given along with the net electrical charge of the compound.
The electrical charge of a coordination compound is mentioned in coordination spheres.
Example: $[F e (C N)_{6}]^{4 -}$

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Coordination entity	Coordination sphere
The coordination entity is the component of a coordination compound that includes the central atom and the ligands surrounding this central atom. The electrical charge of a coordination compound is not mentioned in the coordination entity. Example: $F e (C N)_{6}$	The coordination sphere is the collection of components of a coordination compound that includes the central atom and the ligands surrounding this central atom given along with the net electrical charge of the compound. The electrical charge of a coordination compound is mentioned in coordination spheres. Example: $[F e (C N)_{6}]^{4 -}$