Intramolecular Photoinduced Electron Transfer to Anthraquinones Linked to Duplex DNA:  The Effect of Gaps and Traps on Long-Range Radical Cation Migration

1997 ◽  
Vol 119 (52) ◽  
pp. 12762-12771 ◽  
Author(s):  
Susan M. Gasper ◽  
Gary B. Schuster
Keyword(s):  
Electron Transfer ◽  
Long Range ◽  
Radical Cation ◽  
Photoinduced Electron Transfer ◽  
Duplex Dna ◽  
Cation Migration

Photoinduced electron-transfer reactions: rearrangement of a bicyclopropenyl radical cation

1985 ◽  
Vol 107 (13) ◽  
pp. 3840-3843 ◽  
Author(s):  
Christopher J. Abelt ◽  
Heinz D. Roth
Keyword(s):  
Electron Transfer ◽  
Radical Cation ◽  
Photoinduced Electron Transfer ◽  
Transfer Reactions ◽  
Electron Transfer Reactions

Effect of positively charged backbone groups on radical cation migration and reaction in duplex DNA

2011 ◽  
Vol 89 (3) ◽  
pp. 326-330 ◽  
Author(s):  
Sriram Kanvah ◽  
Gary B. Schuster
Keyword(s):  
Radical Cation ◽  
Dna Analysis ◽  
Duplex Dna ◽  
Charge Migration ◽  
Electron Hole ◽  
Dna Oligomers ◽  
Phosphodiester Backbone ◽  
Cation Migration ◽  
Covalently Linked ◽  
Positively Charged

A series of DNA oligomers were prepared that contain guanidinium linkages (positively charged) positioned selectively in place of and among the normal negatively charged phosphodiester backbone groups of duplex DNA. One-electron oxidation of these DNA oligomers by UV irradiation of a covalently linked anthraquinone group generates a radical cation (electron “hole”) that migrates by hopping through the DNA and is trapped at reactive sites, GG steps, to form mutated bases that are detected by strand cleavage after subsequent piperidine treatment of the irradiated DNA. Analysis of the strand cleavage pattern reveals that guanidinium substitution in these oligomers does not measurably affect the charge migration rate but it does inhibit reaction at nearby guanines.

Rearrangement of a 2-Methylenecyclobutanone Derivative Triggered by Photoinduced Electron Transfer:  An Unprecedented Oxa Analogue of the Tetramethyleneethane Radical Cation

2004 ◽  
Vol 126 (2) ◽  
pp. 414-415 ◽  
Author(s):  
Hiroshi Ikeda ◽  
Futoshi Tanaka ◽  
Kimio Akiyama ◽  
Shozo Tero-Kubota ◽  
Tsutomu Miyashi
Keyword(s):  
Electron Transfer ◽  
Radical Cation ◽  
Photoinduced Electron Transfer

Long-range photoinduced electron transfer in an associated but non-covalently linked photosynthetic model system

1993 ◽  
Vol 115 (22) ◽  
pp. 10418-10419 ◽  
Author(s):  
Jonathan L. Sessler ◽  
Bing Wang ◽  
Anthony Harriman
Keyword(s):  
Electron Transfer ◽  
Long Range ◽  
Photoinduced Electron Transfer ◽  
Model System ◽  
Covalently Linked

Photochemical Doping of TCNQ by Photoinduced Electron Transfer and C-C Cleavage of Radical Cation

1999 ◽  
Vol 28 (3) ◽  
pp. 241-242 ◽  
Author(s):  
Hajime Yokoi ◽  
Katsuya Ishiguro ◽  
Yasuhiko Sawaki
Keyword(s):  
Electron Transfer ◽  
Radical Cation ◽  
Photoinduced Electron Transfer

Long-range photoinduced electron transfer through a DNA helix

Science ◽  
1993 ◽  
Vol 262 (5136) ◽  
pp. 1025-1029 ◽  
Author(s):  
C. Murphy ◽  
M. Arkin ◽  
Y Jenkins ◽  
N. Ghatlia ◽  
S. Bossmann ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Long Range ◽  
Photoinduced Electron Transfer ◽  
Dna Helix

ChemInform Abstract: Radical Cation Cycloaddition Reactions of 2-Vinylbenzofurans and 2-Vinylfurans by Photoinduced Electron Transfer.

ChemInform ◽  
2010 ◽  
Vol 29 (23) ◽  
pp. no-no
Author(s):  
J. BOTZEM ◽  
U. HABERL ◽  
E. STECKHAN ◽  
S. BLECHERT
Keyword(s):  
Electron Transfer ◽  
Radical Cation ◽  
Photoinduced Electron Transfer ◽  
Cycloaddition Reactions
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