2018
DOI: 10.1021/acs.jpcb.8b06884
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Spin-Correlated Radical Ion Pairs Generated in Liquid Haloalkanes Using High-Energy Radiation

Abstract: The probability of formation of spin-correlated secondary radical ion pairs (RIPs) in diluted solutions of charge acceptors in irradiated haloalkanes is believed to be extremely low due to the dissociative attachment of excess electrons to solvent molecules. Contrary to this, it has been found that spin-correlated RIPs can be formed upon irradiation in some liquid chloroalkanes with yield sufficient to observe the recombination fluorescence of the RIP's partners. This allowed the study of primary radical catio… Show more

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Cited by 6 publications
(10 citation statements)
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“…Unfortunately, attempts to directly observe the radical cations of PVC in 1,2-dichloroethane solutions using the TR MFE method did not produce an unambiguous result (see Figure S4 in SI). Nevertheless, it is reasonable to assume that the isotropic g-value of PVC holes is nearly the same as for monosubstituted chloroalkane radical cations, ≈2.026 . In this case, at B = 1.8 T, the period of the Δg quantum beats in TR MFE for the PVC +• / p- TP- d 14 –• pair would be approximately 1.6 ns (see Figure 4 in ref for a comparison).…”
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confidence: 97%
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“…Unfortunately, attempts to directly observe the radical cations of PVC in 1,2-dichloroethane solutions using the TR MFE method did not produce an unambiguous result (see Figure S4 in SI). Nevertheless, it is reasonable to assume that the isotropic g-value of PVC holes is nearly the same as for monosubstituted chloroalkane radical cations, ≈2.026 . In this case, at B = 1.8 T, the period of the Δg quantum beats in TR MFE for the PVC +• / p- TP- d 14 –• pair would be approximately 1.6 ns (see Figure 4 in ref for a comparison).…”
mentioning
confidence: 97%
“…Nevertheless, it is reasonable to assume that the isotropic g-value of PVC holes is nearly the same as for monosubstituted chloroalkane radical cations, ≈2.026 . In this case, at B = 1.8 T, the period of the Δg quantum beats in TR MFE for the PVC +• / p- TP- d 14 –• pair would be approximately 1.6 ns (see Figure 4 in ref for a comparison). The difference in the g -factors of the p- TP radical ions is much lower, of approximately 2 × 10 –4 , which explains the very weak effect of the field B = 1.8 T. Therefore, this implies that the primary holes in PVC do not contribute here to the spin dynamics.…”
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confidence: 97%
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