SEARCH Articles Figures Tables Chain radical Free chains Free mechanism Free radical mechanism Free radicals radical chains Free-radical chain Free-radical chain mechanism HALOGEN-FREE Halogen radicals Halogenation free radical Halogenation free-radical chain mechanism Mechanism , free-radical halogenation Mechanism halogenation Mechanism of halogenation Mechanism radical chain Mechanisms halogenations Radical halogenations Radical mechanism Radical, halogenation The Halogens The Mechanism of Halogenation