Picosecond Transient Absorption Studies of Dipyridophenazine

C. M. Creely; J. M. Kelly; A. M. Selmi; D. A. McGovern; W. J. Blau; P. Matousek; M. Towrie; A. W. Parker

doi:10.1117/12.475457

Picosecond Transient Absorption Studies of Dipyridophenazine

C. M. Creely
, J. M. Kelly
, A. M. Selmi
, D. A. McGovern
, W. J. Blau
, P. Matousek
, M. Towrie
, A. W. Parker

Research output: Contribution to journal › Article › peer-review

Abstract

We report on ultrafast (200fs pulse durations) pump (267nm) and probe (430-700nm) studies of dipyrido [3,2-a:2',3'-c] phenazine (dppz) derivatives.These compounds are of interest as their metal polypyridyl complexes are used as photophysical probes for duplex DNA, where the dppz ligand can intercalate between the base pairs. Dppz, Me₂dppz and F₂dppz were studied to investigate changes occurring in their excited states over Ins. In each case a transient decay and formation of a new species are seen in the 10 → 100ps region. The nature of these transients is discussed.

Original language	English
Pages (from-to)	482-489
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4991
DOIs	https://doi.org/10.1117/12.475457
Publication status	Published - 2003
Externally published	Yes
Event	PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V - San Jose, CA, United States Duration: 27 Jan 2003 → 30 Jan 2003

Keywords

Dipyridophenazine
DNA
Molecular probes
Picosecond
Transient absorption

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10.1117/12.475457

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title = "Picosecond Transient Absorption Studies of Dipyridophenazine",

abstract = "We report on ultrafast (200fs pulse durations) pump (267nm) and probe (430-700nm) studies of dipyrido [3,2-a:2',3'-c] phenazine (dppz) derivatives.These compounds are of interest as their metal polypyridyl complexes are used as photophysical probes for duplex DNA, where the dppz ligand can intercalate between the base pairs. Dppz, Me2dppz and F2dppz were studied to investigate changes occurring in their excited states over Ins. In each case a transient decay and formation of a new species are seen in the 10 → 100ps region. The nature of these transients is discussed.",

keywords = "Dipyridophenazine, DNA, Molecular probes, Picosecond, Transient absorption",

author = "Creely, \{C. M.\} and Kelly, \{J. M.\} and Selmi, \{A. M.\} and McGovern, \{D. A.\} and Blau, \{W. J.\} and P. Matousek and M. Towrie and Parker, \{A. W.\}",

year = "2003",

doi = "10.1117/12.475457",

language = "English",

volume = "4991",

pages = "482--489",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V ; Conference date: 27-01-2003 Through 30-01-2003",

}

TY - JOUR

T1 - Picosecond Transient Absorption Studies of Dipyridophenazine

AU - Creely, C. M.

AU - Kelly, J. M.

AU - Selmi, A. M.

AU - McGovern, D. A.

AU - Blau, W. J.

AU - Matousek, P.

AU - Towrie, M.

AU - Parker, A. W.

PY - 2003

Y1 - 2003

N2 - We report on ultrafast (200fs pulse durations) pump (267nm) and probe (430-700nm) studies of dipyrido [3,2-a:2',3'-c] phenazine (dppz) derivatives.These compounds are of interest as their metal polypyridyl complexes are used as photophysical probes for duplex DNA, where the dppz ligand can intercalate between the base pairs. Dppz, Me2dppz and F2dppz were studied to investigate changes occurring in their excited states over Ins. In each case a transient decay and formation of a new species are seen in the 10 → 100ps region. The nature of these transients is discussed.

AB - We report on ultrafast (200fs pulse durations) pump (267nm) and probe (430-700nm) studies of dipyrido [3,2-a:2',3'-c] phenazine (dppz) derivatives.These compounds are of interest as their metal polypyridyl complexes are used as photophysical probes for duplex DNA, where the dppz ligand can intercalate between the base pairs. Dppz, Me2dppz and F2dppz were studied to investigate changes occurring in their excited states over Ins. In each case a transient decay and formation of a new species are seen in the 10 → 100ps region. The nature of these transients is discussed.

KW - Dipyridophenazine

KW - DNA

KW - Molecular probes

KW - Picosecond

KW - Transient absorption

UR - https://www.scopus.com/pages/publications/0242693343

U2 - 10.1117/12.475457

DO - 10.1117/12.475457

M3 - Article

AN - SCOPUS:0242693343

SN - 0277-786X

VL - 4991

SP - 482

EP - 489

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Organic Photonic Materials and Devices V

Y2 - 27 January 2003 through 30 January 2003

ER -

Picosecond Transient Absorption Studies of Dipyridophenazine

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Keywords

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