Question

Write the IUPAC name of the following complex: \([\text{Co}(\text{NH}_3)_5(\text{CO}_3)]\text{Cl}\).

Hint:

The IUPAC naming system for coordination compounds includes the names of the ligands, the metal, its oxidation state, and the counter-ion.

Answer 1

The IUPAC name of the complex \([\text{Co}(\text{NH}_3)_5(\text{CO}_3)]\text{Cl}\) is Pentaamminecarbonato cobalt(III) chloride.

Explanation:
- "Pentaammine" refers to the five ammonia (\(\text{NH}_3\)) ligands.
- "Carbonato" refers to the carbonate (\(\text{CO}_3\)) ligand.
- "Cobalt(III)" indicates that cobalt is in the +3 oxidation state.
- "Chloride" is the anion that balances the charge of the complex.