Electron-acceptor properties of phospha-alkynes as probed by electron transmission and dissociative electron attachment spectroscopies

Autor:	Guy K. B. Clentsmith, Alberto Modelli, John F. Nixon
Rok vydání:	2002
Předmět:	chemistry.chemical_classification Binding energy General Physics and Astronomy Electron acceptor Ion Crystallography chemistry Electron affinity Atom Physical and Theoretical Chemistry Ionization energy Atomic physics Spectroscopy HOMO/LUMO
Zdroj:	Chemical Physics Letters. 366:122-127
ISSN:	0009-2614
Popis:	Electron transmission spectroscopy is applied for the first time to a phospha-alkyne derivative, (CH 3 ) 3 CCP. Electron attachment to the π * LUMO in the gas-phase occurs at 0.63 eV. Formation of the temporary π * anion state is also observed in measurements of the total anion current, as a function of the incident electron energy. Comparison with the ethyne analogue shows that replacement of a CH group with a P atom causes a very strong increase (2.3 eV) of the vertical electron affinity. Simple Koopmans’ theorem calculations reproduce the experimental data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ab19d37dc112df7ed87a938490c1470 https://doi.org/10.1016/s0009-2614(02)01552-x Zobrazit plný text záznamu Full Text from ScienceDirect