Question:

Write the IUPAC name of the following complex:
[Co(NH₃)₅(CO₃)]Cl.

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The IUPAC naming system for coordination compounds includes the names of the ligands, the metal, its oxidation state, and the counter-ion.
Updated On: Feb 28, 2025
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Solution and Explanation

The IUPAC name of the complex [Co(NH₃)₅(CO₃)]Cl is Pentaamminecarbonato cobalt(III) chloride.
Explanation:
- "Pentaammine" refers to the five ammonia (NH₃) ligands.
- "Carbonato" refers to the carbonate (CO₃) ligand.
- "Cobalt(III)" indicates that cobalt is in the +3 oxidation state.
- "Chloride" is the anion that balances the charge of the complex.
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