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Bond‐Selective H − Ion Abstraction from Thymine
Author(s) -
Ptasińska Sylwia,
Denifl Stephan,
Grill Verena,
Märk Tilmann D.,
Scheier Paul,
Gohlke Sascha,
Huels Michael A.,
Illenberger Eugen
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200461739
Subject(s) - thymine , ion , yield (engineering) , deuterium , abstraction , chemistry , range (aeronautics) , electron , dna , atomic physics , materials science , physics , nuclear physics , organic chemistry , composite material , biochemistry , philosophy , epistemology , metallurgy
The attachment of free electrons to thymine in the gas phase leads to the abstraction of H − ions and a broad, structured feature in the energy range between 5 and 12 eV (see picture). In experiments with partly deuterated thymine the different peaks in the H − ion yield were shown to be associated unambiguously with abstraction from the different molecular positions. This reaction may be an important initial step towards DNA strand breaks.