IUPAC nomenclature of complexes
Coordination Compounds · Chemistry
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Study notes
Name [Co(en)₂Cl₂]Cl systematically. Step 1: Cation first: complex ion is [Co(en)₂Cl₂]⁺, anion Cl⁻ → 'chloride'. Step 2: Ligands alphabetical: bis(ethylenediamine) (b before c), dichlorido. Step 3: Overall charge: 2Cl⁻(in) + Cl⁻(out) = −3; ligands neutral except Cl → Co is +3. Step 4: Name: bis(ethylenediamine)dichloridocobalt(III) chloride.