STUDY OF RADICAL CATIONS OF CIS- AND TRANS-DECALIN IN NONPOLAR SOLUTIONS BY THE MARY AND OPTICALLY DETECTED ESR SPECTROSCOPY

Radical cations of cis- and frons-decalin in nonpolar solvents were st udied by optically detected ESR and magnetically affected reaction yie ld (MARY) spectroscopy. The observed differences in the spectra of cir -and trans-decalin are in agreement with the assumption of the existen ce of temperature-activated intramolecular dynamic transitions in the radical cation of trans-decalin. Using MARY spectroscopy, the signals of the corresponding radical cations were detected at room temperature in diluted solutions containing cis- and trans-decalin molecules as a ccepters. Under these conditions, the total recovery of dynamic transi tions in the radical cation of trans-decalin is observed. Radical cati ons of both ch-and trans-decalin participate in the reaction of the io n-molecular charge transfer to a neutral molecule; the rate constant o f this reaction is close to the diffusion-controlled one.