Solid-state FDMR from sundry poly(oxyethylene) alkylphenyl ethers: a verification of the single-step electron tunneling as a cause of the charge mobility in frozen solids at 4-30 K

Abstract

Observations of the time-resolved fluorescence-detected magnetic resonance (FDMR) from bridged radical ion pairs generated by pulse radiolysis of micellar aqueous and homogeneous alcohol solutions of poly(oxyethylene) (chain length 5-40) alkylphenyl ethers at 430 K are reported. Theoretical analysis of the spectra favors single-step through-bond electron tunneling as a mechanism of the geminate recombination in the pairs at these low temperatures