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

Devereux, S. J., Keane, P. M., Vasudevan, S., Sazanovich, I. V., Towrie, M., Cao, Q., Sun, X.-Z., George, M. W., Cardin, C. J., Kane-Maguire, N. A. P., Kelly, J. M. and Quinn, S. J. (2014) Study of picosecond processes of an intercalated dipyridophenazine Cr(iii) complex bound to defined sequence DNAs using transient absorption and time-resolved infrared methods. Dalton Transactions, 43 (47). pp. 17606-17609. ISSN 1364-5447

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To link to this item DOI: 10.1039/C4DT01989J

Abstract/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 (<3 ps).

Item Type:Article
Refereed:No
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF)
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:38251
Publisher:Royal Society of Chemistry

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