Study MaterialsNCERT SolutionsNCERT Solutions For Class 12 ChemistryNCERT Solutions For Class 12 Chemistry Chapter 9 Coordination Compounds 9.3 Nomenclature Of Coordination Compounds

NCERT Solutions For Class 12 Chemistry Chapter 9 Coordination Compounds 9.3 Nomenclature Of Coordination Compounds

Overview of topic

The standard guidelines for the nomenclature of coordination compounds are outlined in the following sections.

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    1. In the nomenclature of complicated coordination complexes, the ligands are always written before the central metal ion.
    2. The names of the ligands are provided in an alphabetical order that is unaffected by the numerical prefixes that must be applied to the ligands when the coordination centre is attached to more than one ligand.
    3. When a coordination molecule has a large number of monodentate ligands, the prefixes di-, tri-, tetra-, and so on are used to indicate the number of ligands.
    4. The prefixes bis-, tris-, and so on are used when there are numerous polydentate ligands linked to the core metal ion.
    5. The anions in a coordination compound must have names that conclude with the letter ‘o,’ which usually replaces the letter ‘e.’ As a result, the sulphate anion must be expressed as ‘sulfato’ and the chloride anion as ‘chlorido.’
    6. In coordination compounds, the neutral ligands NH3 (ammine), H2O (aqua or aquo), CO (carbonyl), and NO are given special names (nitrosyl).
    7. The name of the core metal atom is written after the ligands have been named. The suffix ‘-ate’ is used if the complex has an anionic charge connected with it.
    8. If the Latin name of the metal exists, it takes precedence when writing the name of the central metallic atom in an anionic compound (with the exception of mercury).

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    Q. Can I score full marks in Class 12 Chapter 9 Chemistry?

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