(all‐E)‐1,3,5,7‐Octatetraene: Electron‐Energy‐Loss and Electron‐Transmission Spectra
- 7 November 1984
- journal article
- research article
- Published by Wiley in Helvetica Chimica Acta
- Vol. 67 (7) , 1776-1782
- https://doi.org/10.1002/hlca.19840670715
Abstract
Electron‐energy‐loss and electron‐transmission spectra of (all‐E)‐1,3,5,7‐octatetraene were recorded with a trochoidal electron spectrometer. The energy‐loss spectra reveal two triplet states at 1.73 and 3.25 eV (0,0‐transitions), the UV‐active 11Bu state at 4.40 eV, and a higher‐lying singlet state at 6.04 eV. The 21Ag state recently reported to be the lowest excited singlet state in this polyene, could not be observed. This failure is probably de to a small excitation cross section under the scattering conditions used and the presence of the second triplet sate in the pertinent energy region. The electron‐transmission spectrum revealed three resonances (i.e. short‐lived anion states) at 1.5, 2.5, and 4.15 eV.Keywords
This publication has 21 references indexed in Scilit:
- Temporary Negative Ion States in Hydrocarbons and Their DerivativesPublished by American Chemical Society (ACS) ,1984
- Excited states of polyene radical cations: limitations of Koopmans' theoremJournal of the American Chemical Society, 1984
- Forward Electron Scattering in Benzene; Forbidden Transitions and Excitation FunctionsHelvetica Chimica Acta, 1982
- Electron transmission spectroscopy of 1,3,5-hexatriene: isomeric differences in .pi. orbital energiesJournal of the American Chemical Society, 1982
- Negative ion states of 1,3-cycloalkadienesJournal of the American Chemical Society, 1980
- Electronic energy levels in a homologous series of unsubstituted linear polyenesJournal of the American Chemical Society, 1980
- Electronic spectroscopy of polyatomic molecules by low-energy, variable-angle electron impactChemical Reviews, 1979
- Hybrid theory and calculation of-scatteringPhysical Review A, 1976
- The Ionization Potentials of Butadiene, Hexatriene, and their Methyl Derivatives: Evidence for through space interaction between double bond π‐orbitals and non‐bonded pseudo‐π orbitals of methyl groups?Helvetica Chimica Acta, 1973
- Structure and Ultraviolet Spectra of Ethylene, Butadiene, and Their Alkyl DerivativesReviews of Modern Physics, 1942