Learning Objective: To learn about the ion-induced dipole interactions, their strength, and their occurrence.
Skill Level - Intermediate
Prerequisites:
Chapter: Intermolecular Forces
Sub-topic: Ion - Induced Dipole Interactions
Author's Note: What if I told you that ion-induced dipole interactions are occurring right now at 12-20 breaths per minute in your body when the Fe2+ ion in blood haemoglobin binds with oxygen from the atmosphere? You may then be able to grasp its immense contribution and significance slightly. Ion–induced dipole interactions are crucial in many aspects of biology and chemistry, transcending industries and functions. In this chapter, we will learn what is required for an ion-induced dipole interaction, its mechanism, and its strength compared to the other intermolecular forces of attraction. We will follow this with the various factors that affect its strength.
Ion - Induced Dipole Interactions | Introduction, Strength and Occurrence
Chemistry has various ion-led interactions- ion-ion, ion-dipole, and ion-induced dipoles.
The ion-induced dipole interactions are the weakest of all ionic interactions.
Ion-Ion > Ion-Dipole> Ion-Induced Dipole
400-4000 > 40-600> 3-15
Energy (kJ/mol)
Ion-induced dipole interaction occurs when ions interact with nonpolar molecules forcing the formation of the dipoles.

However, this ion-induced dipole strength ....
How it occurs?
The ions are of two types- positive (cation) and negative (anion).
Suppose a positive ion approaches a nonpolar molecule; the electrons....
A similar situation is seen for ....
In both situations, a nonpolar molecule having no permanent poles ...
Fe2+ is a positively charged ....
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Next: Factors affecting the strength of Ion - Dipole Interactions
Next: Ion - Induced Dipole Interactions in Polar Molecules