The effects and mechanism of the magnetic field on the hydrogen abstraction reaction of benzophenone and isopropanol

The effects of magnetic fields ranging from 0 T to 0.13 T on the photochemical reactions between benzophenone and isopropanol in the complete reaction cycle were explored. The results showed that with the increase of the applied magnetic field strength, the production rate of the product benzopinacol increased, and the induction period of the reaction was shortened. A new theoretical model suitable for the excitation process was used to explain the magnetic phenomenon in the initiation process of radical reaction, in which the magnetic field was believed to change the lifetime distribution of the excited reactant BP*, thereby affecting the rate of product generation. Specific parameters were used to calculate the lifetime probability distribution of excited state reactant molecules, which provides support for the quantitative analysis of the magnetic field effects of the reaction.