EXAMINATION OF THE EXCHANGE INTERACTION THROUGH MICELLAR SIZE .3. STIMULATED NUCLEAR-POLARIZATION AND TIME-RESOLVED ELECTRON-SPIN-RESONANCESPECTRA FROM THE PHOTOLYSIS OF METHYL DEOXYBENZOIN IN ALKYL SULFATE MICELLES OF DIFFERENT SIZES

Stimulated nuclear polarization (SNP) and time resolved electron spin resonance (TR ESR) spectra were recorded during the laser flash photol ysis of C-13 carbonyl labeled alpha-methyldeoxybenzoin solubilized in a series of alkyl sulfate micelles of different sizes. While the SNP s pectra show a decrease in the splitting of the two hyperfine lines wit h decreasing micelle size, this decrease in hyperfine splitting is not seen in the experimental TR ESR spectra. The qualitatively different variations between the SNP and TR ESR spectra, as a function of micell e size, were interpreted in terms of the stochastic Liouville equation as applied to the model of the microreactor.