Fig. 1.
RP-based magnetic field sensitive photochemistry. (A) Proposed magnetic-sensitive flavin photochemistry based on ref. 26. F = flavin, D = electron donor, Abs = absorption, Fl = fluorescence, ISC = intersystem crossing, ET = electron transfer. (B) Reduction in spin-state mixing due to the electron Zeeman effect for RPs separated sufficiently such that the electron exchange interaction is negligible. hfc = hyperfine coupling constant. (C) MFE on reaction yield (MARY) curve determined by the observed fluorescence intensity. I(B) is the fluorescence intensity in the presence of a magnetic field, I(0) is the fluorescence intensity in the absence of a magnetic field, B is the magnetic field strength, and B1/2 is the magnetic field strength corresponding to half the saturation value of MFE (MFEsat).