H- desorption from uracil via metastable electron capture.
In this Letter we report an analysis of the quantum dynamics for the scattering of slow electrons off uracil molecules, leading to the formation of a trapped, metastable anionic state at around 9 eV of energy. This resonant state is seen to be capable of describing an anionic molecular precursor which can explain the desorption of the H- species observed in experiments on film deposited uracil samples.
Department of Chemistry, The University of Rome "La Sapienza" and INFM Piazzale A. Moro 5, 00185 Rome, Italy.
A
A
Grandi
F A
FA
Gianturco
N
N
Sanna
D004583:Electrons; D008956:Models, Chemical; D008958:Models, Molecular; D011789:Quantum Theory; D012542:Scattering, Radiation; D013816:Thermodynamics; D014498:Uracil / Q000737:chemistry*
D014498:Uracil