Coordination Compounds: Basic Concepts and Nomenclature

Which type of isomerism in coordination compounds is related to the spatial arrangement of ligands around the central metal atom?

According to Werner's coordination theory, what is the coordination number of a metal ion in a complex?

What theory explains the bonding and properties of transition metal complexes by considering the interaction between metal d-orbitals and ligand orbitals?

What is the name given to a complex formed from a metal ion and two or more donor atoms in a single ligand?

What is used to describe the distortion of an octahedral complex to give rise to a square planar geometry?

How are coordination compounds named according to IUPAC rules?

What is the common name for the molecule H2NCH2CH2NH2 in coordination compounds?

Which is an important exception in naming ligands in coordination compounds according to IUPAC rules?

What is used to designate the number of each type of ligand in a complex ion?

What is the ending for the names of anionic ligands according to IUPAC rules?

Isomerism in Coordination Compounds

Spatial arrangement of ligands around the central metal atom is known as geometric isomerism.

Werner's Coordination Theory

Coordination number of a metal ion in a complex refers to the number of ligands attached to it, which is typically 4 or 6.

Bonding Theory for Transition Metal Complexes

The Crystal Field Theory (CFT) explains bonding and properties of transition metal complexes by examining interactions between metal d-orbitals and ligand orbitals.

Complex Formation

A complex formed from a metal ion and two or more donor atoms within a single ligand is called a polydentate complex.

Distortion in Octahedral Complexes

The term ligand field theory is used to describe the distortion of an octahedral complex leading to a square planar geometry.

Naming Coordination Compounds

Naming of coordination compounds follows IUPAC rules, which include specific guidelines for the order of naming cations before anions and ligands before the metal.

Common Ligand Name

The common name for the molecule H2NCH2CH2NH2 in coordination compounds is ethylenediamine.

Exceptions in Ligand Naming

An important exception in naming ligands is that ligands containing a charge suffix use the -ido suffix for anions, such as in chlorido for Cl⁻.

Designation of Ligand Counts

The number of each type of ligand in a complex ion is designated using prefixes such as mono-, di-, tri-, etc.

Anionic Ligand Naming

Anionic ligands in IUPAC naming typically end with the suffix -ido.

Test your knowledge of coordination compounds with this quiz covering basic concepts like types of compounds, coordination complex, and nomenclature. Learn about Werner's theory and the Effective Atomic Number (EAN) rule.