Question:
The correct IUPAC name of the coordination compound K3[Fe(CN)5NO] is:
The correct IUPAC name of the coordination compound K3[Fe(CN)5NO] is:
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When naming coordination compounds, pay attention to the ligands, the central metal, and its oxidation state.
Updated On: Apr 23, 2025
- Potassium pentacyanonitrosylferrate (II)
- Potassium pentacyanonitro-N-ferrate (III)
- Potassium nitritopentacyanoiron (IV)
- Potassium nitritopentacyanoiron (II)
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The Correct Option is B
Solution and Explanation
The IUPAC name for this coordination compound follows the naming convention where the ligand is named first, followed by the metal ion and its oxidation state. - The complex has five cyanide (\(CN^-\)) ligands and one nitrosyl (\(NO\)) ligand. The nitrosyl group is attached to the iron as \(NO\) and not as \(NO_2\), and it is named as nitrosyl. - The oxidation state of iron in this complex is +3. Therefore, the IUPAC name is Potassium pentacyanonitro-N-ferrate (III). Thus, the correct answer is Option (B).
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