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homolysis

chemistry
Also known as: homolytic reaction

Quick Summary

Homolysis is a chemical process where a covalent bond breaks, with each atom in the bond receiving one of the shared electrons. This results in the formation of two uncharged atoms or, more commonly, two free radicals. Free radicals are molecules containing at least one unpaired electron, making them highly reactive.12

This type of bond cleavage is known as a homolytic or free-radical mechanism. It differs from heterolysis, where one atom receives both electrons from the covalent bond. Homolytic reactions are often involved in addition reactions, such as the addition of hydrogen bromide to olefins, and can lead to chain reactions where a single initiation event results in many product molecules.13

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