How many isomers are possible for the following coordination compound ? `[CoCl_2(en)_2]^(+)`

Explanation

To determine the number of isomers for the coordination compound \([CoCl_2(en)_2]^+\), we will analyze the coordination geometry and the ligands involved.

### Step-by-Step Solution:

1. **Identify the Coordination Number and Geometry**:
- The coordination compound has cobalt (Co) as the central metal ion, with two chloride ions (Cl) and two ethylenediamine (en) ligands.
- Ethylenediamine is a bidentate ligand, meaning each en can bind to the metal at two points. Therefore, the coordination number is 6 (2 from Cl and 4 from 2 en ligands).
- The geometry of the complex is octahedral.
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