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Consortium of Swiss Academic Libraries

Laboratory Electronic Spectra of Carbon Chains and Rings

Zack, L. N. ; Maier, J. P.

In: Proceedings of the International Astronomical Union, 2013, vol. 9, no. S297, p. 237-246

Consortium of Swiss Academic Libraries

Symmetry and convergence properties for non-negative solutions of nonautonomous reaction-diffusion problems

Hess, Peter ; Poláčik, P.

In: Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1994, vol. 124, no. 3, p. 573-587

Université de Fribourg

Electron attachment properties of c-C₄F₈O in different environments

Chachereau, A. ; Fedor, Juraj ; Janečková, Radmila ; Kočišek, J. ; Rabie, M. ; Franck, C. M.

In: Journal of Physics D: Applied Physics, 2016, vol. 49, no. 37, p. 375201

The electron attachment properties of octafluorotetrahydrofuran (c-C₄F₈O) are investigated using two complementary experimental setups. The attachment and ionization cross sections of c-C₄F₈O are measured using an electron beam experiment. The effective ionization rate coefficient, electron drift velocity and electron diffusion coefficient in c-C₄F₈O diluted to concentrations...

Université de Fribourg

Core electron excitations in U⁴⁺: modelling of the nd¹⁰5f² → nd⁹5f³ transitions with n = 3, 4 and 5 by ligand field tools and density functional theory

Ramanantoanina, Harry ; Kuri, Goutam ; Daul, Claude ; Bertsch, Johannes

In: Physical Chemistry Chemical Physics, 2016, vol. 18, no. 28, p. 19020–19031

Ligand field density functional theory (LFDFT) calculations have been used to model the uranium M4,5, N4,5 and O4,5-edge X-ray absorption near edge structure (XANES) in UO₂, characterized by the promotion of one electron from the core and the semi-core 3d, 4d and 5d orbitals of U⁴⁺ to the valence 5f. The model describes the procedure to resolve...

Université de Fribourg

Recent research directions in Fribourg: nuclear dynamics in resonances revealed by 2-dimensional EEL spectra, electron collisions with ionic liquids and electronic excitation of pyrimidine

Allan, Michael ; Regeta, Khrystyna ; Gorfinkiel, Jimena D. ; Mašín, Zdeněk ; Grimme, Stefan ; Bannwarth, Christoph

In: The European Physical Journal D, 2016, vol. 70, no. 5, p. 1–7

The article briefly reviews three subjects recently investigated in Fribourg: (i) electron collisions with surfaces of ionic liquids, (ii) two-dimensional (2D) electron energy loss spectra and (iii) resonances in absolute cross sections for electronic excitation of unsaturated compounds. Electron energy loss spectra of four ionic liquids revealed a number of excited states, including triplet...