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.
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U2 - 10.1016/0009-2614(91)90442-C
DO - 10.1016/0009-2614(91)90442-C
M3 - Article
AN - SCOPUS:0003322031
VL - 187
SP - 597
EP - 603
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 6
ER -