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Full-Text Articles in Atomic, Molecular and Optical Physics
Low-Energy Electron Capture By 6-Aza-2-Thiothymine: Investigations By Electron Attachment And Electron Transmission Spectroscopies, Stanislav A. Pshenichnyuk, Gordon A. Gallup, Paul Burrow
Low-Energy Electron Capture By 6-Aza-2-Thiothymine: Investigations By Electron Attachment And Electron Transmission Spectroscopies, Stanislav A. Pshenichnyuk, Gordon A. Gallup, Paul Burrow
Paul Burrow Publications
The interaction of low-energy (0-10 eV) electrons with 6-aza-2-thiothymine is investigated in the gas phase by studies of sharp structure in the total electron scattering cross section and by mass analysis of the stable or long-lived negative ions produced by electron attachment. The most efficient fragmentation process, occurring at 0.15 eV, involves the ejection of a closed-shell neutral molecule (CH3CN). Ab initio calculations support our proposal that this process leads to ring closure to form a stable four-member heterocyclic anion. A long-lived parent anion with an approximate lifetime of 75 microseconds is observed near zero electron energy, and …
A Relation Between Energies Of The Short-Lived Negative Ion States And Energies Of Unfilled Molecular Orbitals For A Series Of Bromoalkanes, S. A. Pshenichnyuk, N. L. Asfandiarov, Paul Burrow
A Relation Between Energies Of The Short-Lived Negative Ion States And Energies Of Unfilled Molecular Orbitals For A Series Of Bromoalkanes, S. A. Pshenichnyuk, N. L. Asfandiarov, Paul Burrow
Paul Burrow Publications
A series of bromoalkanes was investigated by means of electron transmission spectroscopy in the gas phase. Experimental values of vertical electron affinities associated with occupation of the LUMO by an incoming electron were assigned using ab initio quantum chemical calculations. The predicted vertical electron affinity values differ from measured ones by at most ±0.2 eV.