COORDINATION COMPOUNDS – FULL NOTES (2nd PUC Chemistry)
1) SUMMARY
Coordination compounds contain a central metal ion surrounded by ligands that donate electron
pairs
to form coordinate bonds. Coordination number defines the number of ligand donor atoms
attached to
the metal. Naming follows IUPAC rules. Bonding is explained by VBT and CFT. These
compounds show
isomerism and have applications in medicine, biology and metallurgy.
2) IMPORTANT POINTS
• Ligands: mono, bi, polydentate, ambidentate, chelating ligands
• Coordination number: 2, 4 or 6 common
• IUPAC rules: ligands first → metal name → oxidation state
• VBT: hybridization, magnetic properties
• CFT: d-orbital splitting, high/low spin
• Isomerism: structural & stereoisomerism
• Applications: cisplatin (anti-cancer), hemoglobin, cyanide process etc.
3) EXAM-ORIENTED QUESTIONS
2 MARKS:
• Define ligand with examples.
• What is coordination number?
• What is chelate effect?
• Write rules of IUPAC nomenclature.
1) SUMMARY
Coordination compounds contain a central metal ion surrounded by ligands that donate electron
pairs
to form coordinate bonds. Coordination number defines the number of ligand donor atoms
attached to
the metal. Naming follows IUPAC rules. Bonding is explained by VBT and CFT. These
compounds show
isomerism and have applications in medicine, biology and metallurgy.
2) IMPORTANT POINTS
• Ligands: mono, bi, polydentate, ambidentate, chelating ligands
• Coordination number: 2, 4 or 6 common
• IUPAC rules: ligands first → metal name → oxidation state
• VBT: hybridization, magnetic properties
• CFT: d-orbital splitting, high/low spin
• Isomerism: structural & stereoisomerism
• Applications: cisplatin (anti-cancer), hemoglobin, cyanide process etc.
3) EXAM-ORIENTED QUESTIONS
2 MARKS:
• Define ligand with examples.
• What is coordination number?
• What is chelate effect?
• Write rules of IUPAC nomenclature.
