Chemically induced dynamic electron polarization of dialkoxyphosphonyl radicals

The EPR spectra of phosphonyl radicals, (RO) 2\u1e56=O, which are characterized by a well-spaced ( 3c700 G) doublet, show an impressive E-A polarization when generated by photolysis of a 20% (v/v) solution of a dialkyl phosphite in di-tert-butyl peroxide.Peer reviewed: YesNRC publication: Ye

The effects of hyperfine interaction and radical concentration on the relative contributions of ST0 and ST_ mixing in CIDEP

The simplicity of the phosphorus-centered radicals, R2P(O), afforded a correlated study of the effects of hyperfine interaction and radical concentrations on the relative contributions of ST0 and ST_ mixing radical pair mechanisms in CIDEP. \ua9 1989.Peer reviewed: YesNRC publication: Ye

Chemically induced dynamic electron polarization of the diethoxyphosphonyl radical: A case of mixed S-T0 and S-T- radical pair polarization

The electron spin resonance spectrum of the diethoxyphosphonyl radical, (EtO)2\u1e56O, which is characterized by a well-spaced 696-G doublet, exhibits a strong electron polarization when generated by photolysis of a 20% (v/v) solution of diethyl phosphite in di-tert-butyl peroxide. Although the observed emissive-absorptive polarization superficially appears due to the usual S-T0 radical pair mechanism, a detailed analysis shows that the S-T_ radical pair mechanism also contributes to the polarization. The analysis also yields an estimate of the range of the exchange interaction between two (EtO)2\u1e56O radicals. \ua9 1985 American Chemical Society.Peer reviewed: YesNRC publication: Ye