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'Photoelectron Spectra' in keywords Facet   Publication Year 1976  [X]
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1976[X]
1Author    Galina Tschmutowa, Hans BockRequires cookie*
 Title    Photoelektronen-Spektren und Moleküleigenschaften, LXIII 1 Ionisierungsenergien von Phenyl-Methyl-Tellurid und Vergleich der Effekte von Sauerstoff-, Schwefel-, Selen-und Tellur-Substituenten auf das Benzol-rc-System Photoelectron Spectra and Molecular Properties, LXIII 1 Ionization Energies of Phenyl Methyl Telluride and Comparison of Effects of Oxygen, Sulphur, Selenium and Tellurium Substituents on the Benzene n System  
 Abstract    The photoelectron spectrum of HsC6-Te-CH 3 displays in its low energy region over-lapping bands of gas-phase conformers. Depending on the dihedral angle between the plane of the phenyl ring and the tellurium lone pair, the TI conjugation amounts to only 0.1 eV and 0.3 eV, respectively. These values are compared to the considerably larger ones found for the analogous phenyl derivatives H5C6-X-CH3 with X = O, S and Se. 
  Reference    (Z. Naturforsch. 31b, 1611—1615 [1976]; eingegangen am 16. August 1976) 
  Published    1976 
  Keywords    Tellurium Organic Compounds, Photoelectron Spectra, n; Conjugation, Conformers 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-1611.pdf 
 Identifier    ZNB-1976-31b-1611 
 Volume    31 
2Author    Susanne Elbel, HeindirkTom DieckRequires cookie*
 Title    Photoelektronenspektren von Verbindungen der V. Hauptgruppe, III 1 Methylhalogenverbindungen MeEHal2 und Me2EHal Photoelectron Spectra of Group V Compounds, III 1 Methylhalogen Compounds MeEHal2 and Me2EHal  
 Abstract    The He I photoelectron spectra of certain MeEHal2 and MeaEHal compounds (E = (N), P, As, Sb; Hal = (F), Cl, Br, J; Me = CH3) are interpreted in terms of a "composite molecule" approach derived for C3v/Cs systems. Although an "internal standard" is missing here, substituent group-orbitals (njjai, C-H) may be classified with respect to their orien-tations in space (R, V, T). Ionisation energies are assigned according to this assumption. PE data of the isoelectronic EMe3/EHal3 compounds and of related molecules (Me2EH, MePH2, CF3PBr2) as well as EHMO calculations with partial inclusion of spin orbit coupling are used to confirm the assignments given for Me2EHal/MeEHal2 series. Correlations between PE ionisation energies (e.g. nE (IE)) and molecular or atomic properties are critically revised and discussed. 
  Reference    (Z. Naturforsch. 31b, 178—189 [1976]; eingegangen am 1. September 1975) 
  Published    1976 
  Keywords    Photoelectron Spectra, Nitrogen, Phosphorus, Antimony Methyl Halides, n-Ionizations 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0178.pdf 
 Identifier    ZNB-1976-31b-0178 
 Volume    31 
3Author    Galina Tschmutowa, Hans BockRequires cookie*
 Title    Photoelektronenspektren und Moleküleigenschaften, LXIV 1 Dimethyldiselenid -ein Beispiel für die Wechselwirkung zwischen benachbarten Elektronenpaaren Photoelectron Spectra and Molecular Properties, LXIV Dimethyldiselenide -an Example for the Interaction between Adjacent Electron Pairs  
 Abstract    The well-resolved helium(I) photoelectron spectrum of H 3 C-Se-Se-CH 3 exhibits distinct bands corresponding to 11 of the total 13 valence electron ionizations. The unequivocal assignment is supported by EHMO calculations including spin/orbit coupling. The two selenium lone pair ionizations differ by 0.23 eV; a split observed also for dimethyl disulfide and discussed within a general model for interactions between adjacent lone pairs. 
  Reference    (Z. Naturforsch. 31b, 1616—1620 [1976]; eingegangen am 16. August 1976) 
  Published    1976 
  Keywords    Selenium Organic Compounds, Photoelectron Spectra, Electron Pair Interaction, Gas Phase Conformation 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-1616.pdf 
 Identifier    ZNB-1976-31b-1616 
 Volume    31