[Spectroscopic investigation of magnetic field effects on radical reactions induced by laser excitation].

Dynamic spin chemistry, including magnetic field effects (MFE), magnetic isotope effects (MIE), CIDEP and CIDNP, has become a research area. In the present paper, the authors briefly introduced the development history and the spectroscopic research state of magnetic field effects for the radical reactions induced by laser excitation. The possible reasons for magnetic field effects of the radical reactions, theories for the conversion of singlet and triplet states, and mechanisms of magnetic field effects were explained and the recent development state of magnetic field effects for the radical reactions was also introduced to domestic scientists.