The radical pair mechanism is a process that involves the interaction of two radicals (highly reactive molecules with unpaired electrons) and has been found to be sensitive to magnetic fields. In the presence of a magnetic field, the radical pair mechanism can be influenced, leading to changes in the reaction rates and yields.
The magnetic field effect on radical pair reactions can be explained by the following mechanisms:
Spin-correlated radical pairs: In the presence of a magnetic field, the spin-correlated radical pairs can be formed, which can lead to changes in the reaction rates and yields.
Spin relaxation: The magnetic field can influence the spin relaxation of the radicals, leading to changes in the reaction rates and yields.
Magnetic field-induced intersystem crossing: The magnetic field can induce intersystem crossing between the singlet and triplet states, leading to changes in the reaction rates and yields.
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