Femtosecond Dynamics of DNA Photolyase:  Energy Transfer of Antenna Initiation and Electron Transfer of Cofactor Reduction

2004 ◽  
Vol 108 (46) ◽  
pp. 18026-18033 ◽  
Author(s):  
Chaitanya Saxena ◽  
Aziz Sancar ◽  
Dongping Zhong

Author(s):  
Xia Wu ◽  
Dongyang Li ◽  
Jin Li ◽  
Weijie Chi ◽  
Xie Han ◽  
...  


2003 ◽  
Vol 9 (12) ◽  
pp. 2763-2769 ◽  
Author(s):  
Li-Ping Zhang ◽  
Bin Chen ◽  
Li-Zhu Wu ◽  
Chen-Ho Tung ◽  
Hong Cao ◽  
...  


ChemInform ◽  
2010 ◽  
Vol 30 (8) ◽  
pp. no-no
Author(s):  
V. Ramamurthy ◽  
P. Lakshminarasimhan ◽  
Clare P. Grey ◽  
Linda J. Johnston


Author(s):  
Lei Bao ◽  
Jin-Tang Cheng ◽  
Zhi-Xiang Wang ◽  
Xiang-Yu Chen

2,4,6-Triarylpyrylium salts are stable, easily available and cheap. However, only their elec-tron transfer oxidation ability was explored. We herein report that they could perform both energy transfer and electron transfer...



2006 ◽  
Vol 80 (7) ◽  
pp. 1069-1076
Author(s):  
V. V. Eremin ◽  
I. O. Glebov ◽  
S. S. Razorenova ◽  
A. S. Belov ◽  
I. I. Yurkov


2005 ◽  
Vol 109 (4) ◽  
pp. 1329-1333 ◽  
Author(s):  
Haiyu Wang ◽  
Chaitanya Saxena ◽  
Donghui Quan ◽  
Aziz Sancar ◽  
Dongping Zhong


2001 ◽  
Vol 665 ◽  
Author(s):  
P.A. van Hal ◽  
R.A.J. Janssen ◽  
G. Lanzani ◽  
G. Cerullo ◽  
M. Zavelani-Rossi ◽  
...  

ABSTRACTThe intramolecular photoinduced energy and electron transfer within a fullereneoligothiophene-fullerene triad with nine thiophene units (C60-9T-C60) and an oligo(p-phenylene vinylene)-fullerene dyad with four phenyl groups (OPV4-C60) is investigated with femtosecond pump-probe spectroscopy with sub-10 fs and 200 fs time resolution in solvents of different polarity. Photoexcitation of the π-conjugated oligomer moiety in the triad and dyad results in an ultrafast singlet-energy transfer reaction to create the fullerene singlet-excited state with a time constant of 150-190 fs, irrespective of the polarity of the medium. In a polar solvent, intramolecular electron transfer occurs from the oligomer moiety to the C60 moiety with a time constant of 10-13 ps as a secondary reaction, subsequent to the ultrafast singlet-energy transfer. The charge-separated state has a lifetime of 50-80 ps and recombines to the ground state.



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