Interpretation: Potential-energy versus reaction-coordinate diagrams for the two propagation steps for monobromination of methane should be sketched.
Concept introduction: The mechanism for monobromination comprises of three stages illustrated as follows:
Step1: Initiation via homolytic cleavage of
Step2: Propagation: In first of the propagation step bromine radical from step 1 abstracts hydrogen radical from methane as follows:
In subsequent propagation step methyl radical abstracts
Step3: Termination: Radicals generated in propagation steps get quenched upon combination with one another. Thus termination steps are essentially the radical− radical combination illustrated as follows:
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Organic Chemistry: Structure and Function
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- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning