DIPOLE BOUND, NUCLEIC-ACID BASE ANIONS STUDIED VIA NEGATIVE-ION PHOTOELECTRON-SPECTROSCOPY

Authors
HENDRICKS JH LYAPUSTINA SA DECLERCQ HL SNODGRASS JT BOWEN KH
Citation
Jh. Hendricks et al., DIPOLE BOUND, NUCLEIC-ACID BASE ANIONS STUDIED VIA NEGATIVE-ION PHOTOELECTRON-SPECTROSCOPY, The Journal of chemical physics, 104(19), 1996, pp. 7788-7791
Citations number
53
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
104
Issue
19
Year of publication
1996
Pages
7788 - 7791
Database
ISI
SICI code
0021-9606(1996)104:19<7788:DBNBAS>2.0.ZU;2-C
Abstract
The anions of the nucleic acid bases, uracil and thymine, were studied by negative ion photoelectron spectroscopy. Both monomer anions exhib it spectroscopic signatures that are indicative of dipole bound excess electrons. The adiabatic electron affinities of these molecules were found to be 93+/-7 meV for uracil and 69+/-7 meV for thymine. No conve ntional (valence) anions of these molecules were observed. (C) 1996 Am erican Institute of Physics.