Study of picosecond processes of an intercalated dipyridophenazine Cr(iii) complex bound to defined sequence DNAs using transient absorption and time-resolved infrared methodsElectronic supplementary information (ESI) available: For experimental details and additional steady-state and transient data for d(GGGGGCCCCC); d(TCGGCGCCGA), as well as to [poly(dG-dC)]2 systems. See DOI: 10.1039/c4dt01989j

Picosecond transient absorption (TA) and time-resolved infrared (TRIR) measurements of rac -[Cr(phen) 2 (dppz)] 3+ ( 1 ) intercalated into double-stranded guanine-containing DNA reveal that the excited state is very rapidly quenched. As no evidence was found for the transient electron transfer produ...

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Main Authors: Devereux, Stephen J, Keane, Páraic M, Vasudevan, Suni, Sazanovich, Igor V, Towrie, Michael, Cao, Qian, Sun, Xue-Zhong, George, Michael W, Cardin, Christine J, Kane-Maguire, Noel A. P, Kelly, John M, Quinn, Susan J
Format: Article
Language:English
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Summary:Picosecond transient absorption (TA) and time-resolved infrared (TRIR) measurements of rac -[Cr(phen) 2 (dppz)] 3+ ( 1 ) intercalated into double-stranded guanine-containing DNA reveal that the excited state is very rapidly quenched. As no evidence was found for the transient electron transfer products, it is proposed that the back electron transfer reaction must be even faster (
ISSN:1477-9226
1477-9234
DOI:10.1039/c4dt01989j