Journal ArticleDOI
Valence Ionization Energies of Hydrocarbons
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In this paper, the experimental valence ionisation energies of 143 hydrocarbons, CnHm, have been determined from their He (IIα) (40.80 eV) and He (Iα)(21.22 eV)-excited photoelectron spectra.Abstract:
Experimental valence ionisation energies of 143 hydrocarbons, CnHm, have been determined from their He (IIα) (40.80 eV) and He (Iα) (21.22 eV) excited photoelectron spectra. Ionization energies, usually up to 26 eV are given in tabular form for 108 hydrocarbons with n≤6, together with their (tentative) assignment. The ionization energies up to approximately 25 eV, of 35 selected hydrocarbons with 7≤n≤10, are presented by means of their He (IIα) photoelectron spectra.read more
Citations
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A mass spectroscopic study of laser vaporized graphite in H2 and D2 gases: the stability of C2nH2 (n=2–5) and C10
TL;DR: In this article, the authors studied the formation of carbon clusters and hydrocarbons by laser ablation under hydrogen gas under 10.5 eV ionization followed by time-of-flight mass spectroscopy.
Journal ArticleDOI
Chemical repercussions of orbital interactions through bond and through space. Effect of remote substituents on the addition of nitrenes to bicyclic olefins
R. Alan Aitken,Ian Gosney,Hugh Farries,Michael H. Palmer,Isobel Simpson,J. I. G. Cadogan,Edward J. Tinley +6 more
TL;DR: In this article, the reactivity of a series of bicyclic olefins with nitrenes is profoundly influenced by the nature of remote functional groups, making the latter remarkably electron deficient as evidenced by UV-photoelectron spectrosoopy.
Journal ArticleDOI
Valence ionization energies of hydrocarbons
TL;DR: In this article, the experimental valence ionisation energies of 143 hydrocarbons, CnHm, have been determined from their He (IIα) (40.80 eV) and He (Iα)(21.22 eV)-excited photoelectron spectra.
Journal ArticleDOI
Molecular and electronic structure of 1,2-disilacyclobutabenzenes. ab initio molecular orbital and density functional study
TL;DR: In this article, the geometric and electronic structure of 1,2-disilacyclobutabenzene and its polyannelated analogues is examined by the MP2(fc)/6-31G* and B3LYP/6- 31G* methods.
Journal ArticleDOI
Theoretical study of the fragmentation pathways of norbornane in its doubly ionized ground state.
TL;DR: The results demonstrate the likelihood of an ultrafast intramolecular rearrangement of the saturated hydrocarbon cage after a sudden removal of two electrons into a kinetically metastable five-membered cyclic C5H8+-CH+- CH3 intermediate, prior to a Coulomb explosion into C5h7+=CH2 and CH3+ fragments, which might explain a tremendous rise of electron-impact cross sections at electron binding energies around the double-ionization threshold.
References
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TL;DR: In this paper, Fock's Naherungsmethode zur Behandung des quantenmechanischen Mehrelektronenproblems aufgestellten Gleichungen werden auf etwas allgemeinerer Grundlage diskutiert.
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J.J. Pireaux,Svante Svensson,E. Basilier,P.-A. Malmqvist,Ulrik Gelius,R. Caudano,Kai Siegbahn +6 more
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High resolution molecular photoelectron spectroscopy. III. Acetylenes and aza-acetylenes
C. Baker,D. W. Turner +1 more
TL;DR: In this paper, the spectra of the 584 A (21·22 eV) photoelectron were reported for the following linear unsaturated molecules: acetylene, dideutero-acetylene, hydrogen cyanide, deuterium cyanide and diacetylene.
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Ultra-violet photoelectron data on the complete valence shells of molecules recorded using filtered 30.4 nm radiation
TL;DR: In this paper, it was shown that in many molecules the summed binding energies of the molecular orbitals built from 2s atomic orbitals may be divided up into atomic contributions which agree in magnitude with those obtained for the same atoms in other molecules.
Journal ArticleDOI
High Resolution Molecular Photoelectron Spectroscopy. I. Fine Structure in the Spectra of Hydrogen and Oxygen
TL;DR: In this paper, a photo-electron spectrometer is described which uses focusing deflexion in a radial electrostatic field for energy analysis, and an over-all limit of about 0.002 eV is deduced as the smallest attainable line width in ordinary circumstances.