Abstract
Magnetic field effects (MFEs) on the triplet sensitization of p-aminophenyl disulfide were investigated in a sodium dodecylsulfate (SDS) micellar solution by means of a nanosecond laser flash photolysis technique at high magnetic fields up to 10 T. The yield of the escaped (p-aminopheny1)thiyl radical increased steeply with increasing magnetic field strength ( B ) from 0 to 1 T, but decreased gradually from 1 to 10 T. At 10 T, the yield of the escaped radical became similar to that at 0 T. The MFEs observed at both low ( B I 1 T) and high (1 T B I 10 T) fields were simultaneously quenched by the addition of a Paramagnetic Gd3+ ion. Thus, these reverted MFEs were interpreted by the relaxation mechanism through anisotropic hyperfine and Zeeman interactions.
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