The concentration dependence of the phase of radical-pair mechanism chemically induced dynamic electron polarization (CIDEP)

Abstract

In flash-photolysis experiments the phase of RPM polarization in the radicals commonly changes in time after the flash, the patterns observed at longer times being apparently inconsistent with observations on the same radical systems made using alternative experimental techniques. It is shown here that the phase inversion is concentration dependent and that this removes the apparent inconsistencies. The results can be interpreted in two independent ways which at present cannot be distinguished.