What is the IUPAC name of [Co(NH₃)3Cl₃]?

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What is the IUPAC name of [Co(NH₃)3Cl₃]?

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Triamminetrichloridocobalt(III) Correct Trichloridotriamminecobalt(II) Triamminetrichloridocobalt(IV) Trichloridotriamminecobalt(III)

Explanation

Ligands: ammine (NH₃), chlorido (Cl), alphabetically ordered. Neutral complex, Co is +3 (3 Cl− balanced by Co). Name: triamminetrichloridocobalt(III).

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