Question:
Explain ionisation isomerism and coordination isomerism in coordination compounds with examples.
Explain ionisation isomerism and coordination isomerism in coordination compounds with examples.
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Ionisation isomerism changes the counter-ion, while coordination isomerism swaps ligands between metal centers.
Updated On: Mar 6, 2025
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Solution and Explanation
Step 1: Ionisation Isomerism:
Occurs when compounds produce different ions in solution. Example: \[ [Co(NH_3)_5SO_4]Br \text{ and } [Co(NH_3)_5Br]SO_4 \] Step 2: Coordination Isomerism:
Occurs when the ligands exchange between cation and anion parts. Example: \[ [Cr(NH_3)_6][Co(CN)_6] \text{ and } [Co(NH_3)_6][Cr(CN)_6] \]
Occurs when compounds produce different ions in solution. Example: \[ [Co(NH_3)_5SO_4]Br \text{ and } [Co(NH_3)_5Br]SO_4 \] Step 2: Coordination Isomerism:
Occurs when the ligands exchange between cation and anion parts. Example: \[ [Cr(NH_3)_6][Co(CN)_6] \text{ and } [Co(NH_3)_6][Cr(CN)_6] \]
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