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

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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Photoinduced electron transfer in a covalent benzo[a] pyrene diol epoxide-2′-deoxyguanosine complex. / Margulis, Leonid; Pluzhikov, Pavel F.; Mao, Bing; Kuzmin, Vladimir A.; Chang, Yong J.; Scott, Thomas W.; Geacintov, Nicholas E.

In: Chemical Physics Letters, Vol. 187, No. 6, 27.12.1991, p. 597-603.

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

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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.",

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AU - Margulis, Leonid

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AU - Kuzmin, Vladimir A.

AU - Chang, Yong J.

AU - Scott, Thomas W.

AU - Geacintov, Nicholas E.

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