Isomerism
Which type of isomerism is shown by [Co(NH₃)₅NO₂]Cl₂ and [Co(NH₃)₅ONO]Cl₂?
Select the correct option:
Solution
Linkage isomerism
Linkage Isomerism arises in coordination compounds containing ambidentate ligands.
- An ambidentate ligand is one that can coordinate to the central metal through two different atoms.
- The NO2− ion can coordinate either through the nitrogen atom (M−NO2, nitro) or through the oxygen atom (M−ONO, nitrito).
- Since these two complexes differ only in the atom through which the nitrite ligand is linked to the Cobalt, they are linkage isomers.
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About This Question
- Subject
- chemistry
- Chapter
- coordination compounds
- Topic
- isomerism
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Linkage isomerism
Linkage Isomerism arises in coordination compounds containing ambidentate ligands.
- An ambidentate ligand is one that can coordinate to the central metal through two different atoms.
- The NO2− ion can coordinate either through the nitrogen atom (M−NO2, nitro) or through the oxygen atom (M−ONO, nitrito).
- Since these two complexes differ only in the atom through which the nitrite ligand is linked to the Cobalt, they are linkage isomers.
This easy difficulty chemistry question is from the chapter coordination compounds, covering the topic of isomerism. It appeared in the 2025 exam.
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