Photoinduced electron transfer in a covalent benzo[a] pyrene diol epoxide-2′-deoxyguanosine complex

Leonid Margulis; Pavel F. Pluzhikov; Bing Mao; Vladimir A. Kuzmin; Yong J. Chang; Thomas W. Scott; Nicholas E. Geacintov

doi:10.1016/0009-2614(91)90442-C

Photoinduced electron transfer in a covalent benzo[a] pyrene diol epoxide-2′-deoxyguanosine complex

Leonid Margulis, Pavel F. Pluzhikov, Bing Mao, Vladimir A. Kuzmin, Yong J. Chang, Thomas W. Scott, Nicholas E. Geacintov

Chemistry

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

Abstract

The fluorescence of the pyrenyl chromophore in a covalently linked benzo [a] pyrene diol epoxide-N²2′-deoxyguanosine complex and in noncovalent 7,8,9,10-tetrahydroxytetrahydrobenzo[a] pyrene-deoxyguanosine complexes, is strongly quenched in aqueous solution by a photoinduced electron transfer mechanism. The results of transient absorption spectroscopy experiments with picosecond laser pulse excitation are consistent with the formation of a short-lived charge transfer exciplex (nanosecond time scale) in which the pyrenyl residue acts as an electron acceptor.

Original language	English (US)
Pages (from-to)	597-603
Number of pages	7
Journal	Chemical Physics Letters
Volume	187
Issue number	6
DOIs	https://doi.org/10.1016/0009-2614(91)90442-C
State	Published - Dec 27 1991

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/0009-2614(91)90442-C

Cite this

@article{56e4b6de5ce7410d9c505d270cf6c8a7,

title = "Photoinduced electron transfer in a covalent benzo[a] pyrene diol epoxide-2′-deoxyguanosine complex",

abstract = "The fluorescence of the pyrenyl chromophore in a covalently linked benzo [a] pyrene diol epoxide-N22′-deoxyguanosine complex and in noncovalent 7,8,9,10-tetrahydroxytetrahydrobenzo[a] pyrene-deoxyguanosine complexes, is strongly quenched in aqueous solution by a photoinduced electron transfer mechanism. The results of transient absorption spectroscopy experiments with picosecond laser pulse excitation are consistent with the formation of a short-lived charge transfer exciplex (nanosecond time scale) in which the pyrenyl residue acts as an electron acceptor.",

author = "Leonid Margulis and Pluzhikov, {Pavel F.} and Bing Mao and Kuzmin, {Vladimir A.} and Chang, {Yong J.} and Scott, {Thomas W.} and Geacintov, {Nicholas E.}",

note = "Funding Information: This work was supported by the Department of Energy, Grant FG02-86ER60405.",

year = "1991",

month = dec,

day = "27",

doi = "10.1016/0009-2614(91)90442-C",

language = "English (US)",

volume = "187",

pages = "597--603",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "6",

}

TY - JOUR

T1 - Photoinduced electron transfer in a covalent benzo[a] pyrene diol epoxide-2′-deoxyguanosine complex

AU - Margulis, Leonid

AU - Pluzhikov, Pavel F.

AU - Mao, Bing

AU - Kuzmin, Vladimir A.

AU - Chang, Yong J.

AU - Scott, Thomas W.

AU - Geacintov, Nicholas E.

N1 - Funding Information: This work was supported by the Department of Energy, Grant FG02-86ER60405.

PY - 1991/12/27

Y1 - 1991/12/27

N2 - The fluorescence of the pyrenyl chromophore in a covalently linked benzo [a] pyrene diol epoxide-N22′-deoxyguanosine complex and in noncovalent 7,8,9,10-tetrahydroxytetrahydrobenzo[a] pyrene-deoxyguanosine complexes, is strongly quenched in aqueous solution by a photoinduced electron transfer mechanism. The results of transient absorption spectroscopy experiments with picosecond laser pulse excitation are consistent with the formation of a short-lived charge transfer exciplex (nanosecond time scale) in which the pyrenyl residue acts as an electron acceptor.

AB - The fluorescence of the pyrenyl chromophore in a covalently linked benzo [a] pyrene diol epoxide-N22′-deoxyguanosine complex and in noncovalent 7,8,9,10-tetrahydroxytetrahydrobenzo[a] pyrene-deoxyguanosine complexes, is strongly quenched in aqueous solution by a photoinduced electron transfer mechanism. The results of transient absorption spectroscopy experiments with picosecond laser pulse excitation are consistent with the formation of a short-lived charge transfer exciplex (nanosecond time scale) in which the pyrenyl residue acts as an electron acceptor.

UR - http://www.scopus.com/inward/record.url?scp=0003322031&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0003322031&partnerID=8YFLogxK

U2 - 10.1016/0009-2614(91)90442-C

DO - 10.1016/0009-2614(91)90442-C

M3 - Article

AN - SCOPUS:0003322031

SN - 0009-2614

VL - 187

SP - 597

EP - 603

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 6

ER -

Photoinduced electron transfer in a covalent benzo[a] pyrene diol epoxide-2′-deoxyguanosine complex

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this