The Magnetic Field Effect on Photodissociation

Application of low, moderate, and strong magnetic fields (MFs) affects the escape of free radicals from a (viscous) solvent cage or from a microheterogeneous compartment such as a micelle. The theory of magnetic field effects (MFEs) is well described in a number of review articles.  

At high magnetic fields of R 1 T, another mechanism becomes efficient, namely, a Ag mechanism. Action of a Ag mechanism leads to an increase in 1 and a decrease 

The RP must live long enough to allow singlet-triplet evolution under MF that is one of the main demands for observation of each of the three MFEs briefly mentioned above. 

Application of a moderate MF accelerates photopolymerization initiated by PI leading to triplet RPs. The main effect is an increase in/and an increase in the rate of initiation. One should expect a second weak effect leading to deceleration of a chain termination by bimolecular radical reaction. A MFE on an F parr was observed for the first time in Refs 23,24. 

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