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

doi:10.1039/c4dt01989j

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 Publication › Article › peer-review

10 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 language	English
Pages (from-to)	17606-17609
Number of pages	4
Journal	Dalton Transactions
Volume	43
Issue number	47
DOIs	https://doi.org/10.1039/c4dt01989j
Publication status	Published - 21 Dec 2014
Externally published	Yes

ASJC Scopus subject areas

Inorganic Chemistry

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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., & 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), 17606-17609. https://doi.org/10.1039/c4dt01989j

@article{58e1de6a8c0840169d7b409809287f53,

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

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).",

author = "Devereux, {Stephen J.} and Keane, {P{\'a}raic M.} and Suni Vasudevan and Sazanovich, {Igor V.} and Michael Towrie and Qian Cao and Sun, {Xue Zhong} and George, {Michael W.} and Cardin, {Christine J.} and Kane-Maguire, {Noel A.P.} and Kelly, {John M.} and Quinn, {Susan J.}",

note = "Publisher Copyright: {\textcopyright} 2014 The Royal Society of Chemistry.",

year = "2014",

month = dec,

day = "21",

doi = "10.1039/c4dt01989j",

language = "English",

volume = "43",

pages = "17606--17609",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "47",

}

Devereux, SJ, Keane, PM, Vasudevan, S, Sazanovich, IV, Towrie, M, Cao, Q, Sun, XZ, George, MW, Cardin, CJ, Kane-Maguire, NAP, Kelly, JM & Quinn, SJ 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, vol. 43, no. 47, pp. 17606-17609. https://doi.org/10.1039/c4dt01989j

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, Stephen J.; Keane, Páraic M.; Vasudevan, Suni et al.
In: Dalton Transactions, Vol. 43, No. 47, 21.12.2014, p. 17606-17609.

Research output: Journal Publication › Article › peer-review

TY - JOUR

T1 - Study of picosecond processes of an intercalated dipyridophenazine Cr(iii) complex bound to defined sequence DNAs using transient absorption and time-resolved infrared methods

AU - Devereux, Stephen J.

AU - Keane, Páraic M.

AU - Vasudevan, Suni

AU - Sazanovich, Igor V.

AU - Towrie, Michael

AU - Cao, Qian

AU - Sun, Xue Zhong

AU - George, Michael W.

AU - Cardin, Christine J.

AU - Kane-Maguire, Noel A.P.

AU - Kelly, John M.

AU - Quinn, Susan J.

PY - 2014/12/21

Y1 - 2014/12/21

N2 - 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).

AB - 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).

UR - http://www.scopus.com/inward/record.url?scp=84911936810&partnerID=8YFLogxK

U2 - 10.1039/c4dt01989j

DO - 10.1039/c4dt01989j

M3 - Article

C2 - 25182384

AN - SCOPUS:84911936810

SN - 1477-9226

VL - 43

SP - 17606

EP - 17609

JO - Dalton Transactions

JF - Dalton Transactions

IS - 47

ER -

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

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