Study of picosecond processes of an intercalated dipyridophenazine Cr(iii) complex bound to defined sequence DNAs using transient absorption and time-resolved infrared methods

Stephen J. Devereux, Páraic M. Keane, Suni Vasudevan, Igor V. Sazanovich, Michael Towrie, Qian Cao, Xue Zhong Sun, Michael W. George, Christine J. Cardin, Noel A.P. Kane-Maguire, John M. Kelly, Susan J. Quinn

Research output: Journal PublicationArticlepeer-review

9 Citations (Scopus)

Abstract

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 (<3 ps).

Original languageEnglish
Pages (from-to)17606-17609
Number of pages4
JournalDalton Transactions
Volume43
Issue number47
DOIs
Publication statusPublished - 21 Dec 2014
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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