Nomenclature of Neutral Complexes
Applying IUPAC rules to correctly name coordination compounds that are electrically neutral molecules.
What is Nomenclature of Neutral Complexes?
A coordination compound with no net electrical charge.
Key points
- To systematically name neutral coordination complexes.
- To apply IUPAC nomenclature rules for coordination compounds.
- To correctly identify ligands and their prefixes.
- To determine and represent the oxidation state of the central metal.
Common exam trap
Incorrectly determining the oxidation state of the central metal.
Definitions
- Term
Neutral Complex
- Meaning
A coordination compound with no net electrical charge.
- Term
Ligand
- Meaning
An ion or molecule that binds to a central metal atom to form a coordination complex.
- Term
Coordination Number
- Meaning
The number of ligand atoms directly bonded to the central metal atom.
Learning objectives
To systematically name neutral coordination complexes.
To apply IUPAC nomenclature rules for coordination compounds.
To correctly identify ligands and their prefixes.
To determine and represent the oxidation state of the central metal.
Prerequisites
Understanding of coordination compounds.
Knowledge of common ligands and their charges.
Ability to determine the oxidation state of the central metal atom.
Common mistakes
Incorrectly determining the oxidation state of the central metal.
Forgetting to list ligands alphabetically.
Using incorrect prefixes for ligands (e.g., di- instead of bis- for ethylenediamine).
Adding a space between the ligand part and the metal part of the name.
Incorrectly applying the '-ate' suffix to the metal.
Keywords
Coordination compounds
Neutral complexes
IUPAC nomenclature
Ligands
Central metal atom
Oxidation state
Prefixes
Alphabetical order
Practice preview
The IUPAC name for the neutral complex [Ni(CO)₄] is:…
easy
What is the IUPAC name of the neutral complex [Co(NH₃)₃Cl₃]?…
easy
Which of the following is the correct IUPAC name for the neutral complex [Pt(NH₃)₂(Cl)₂]?…
easy