Question

In coordination compounds, what feature of ligands is essential for bonding to the central metal ion?

A) Positive charge
B) Negative charge
C) Nonbonded electrons
D) Protons

Answer 1

Nonbonded electrons are the essential feature of ligands for bonding to the central metal ion in coordination compounds.

Step-by-step explanation:

The feature of ligands that is essential for bonding to the central metal ion in coordination compounds is nonbonded electrons.

Coordination compounds are formed when ligands, which are atoms or ions with one or more electron pairs, donate their electron pairs to the central metal ion. These donated electron pairs form coordinate covalent bonds with the metal ion.

For example, in the coordination compound [Fe(CN)6]4-, the ligand CN- donates its lone pair of electrons to form a coordinate bond with the Fe2+ central metal ion.