Magnetic Effect on Reaction Yield

MARY spectroscopy uses fluorescence from the exciplex to detect the variation in the singlet-triplet spin dynamics of a radical ion pair as a function of the magnetic field. 

In radiation chemistry. X-ray tubes are the most commonly used source of radiation for MARY experiments to study the hole lifetime and reactivity in non-polar solvents (details can be found in Ref. [66]). In particular, MARY can be very useful to study short-lived transient species that are otherwise much more difficult to study using standard ESR techniques. 

In the semiclassical approximation the electron spin on each radical is treated quanmm mechanically, whilst the nuclear spins are treated classically. The unpaired electron processes about the static field and the resultant of the nuclear spins. 

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