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The hole transfer through DNA was monitored by the transient absorption of radical cation of phenothiazine (Ptz + ). The occurrence of hole transfer from G + generated in DNA to Ptz was observed in the time range of 100 μs. The hole transfer to Ptz was significantly suppressed by introducing oxG as a hole trap in DNA, and the trapping reaction of oxG + by water was suggested...
Transient absorption measurement of radical anions of 1,1-diarylmethanols bearing electron-withdrawing groups in dimethyl-formamide at room temperature has revealed that symmetric compounds form intramolecular dimer radical anions as an intermediate of their reductive C-O bond dissociation giving diarylmethyl radicals. The dimer radical anions showed an absorption band in the near infrared region...
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