Photoelectron Spectroscopy of Monocyclic Olefins (CROSBI ID 77468)
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Novak, Igor ; Potts, A.W.
engleski
Photoelectron Spectroscopy of Monocyclic Olefins
We present He I photoelectron spectra (UPS) of several isomeric monocyclic trienes and dienes. The spectra were interpreted by semiempirical MO calculations and comparison with spectra of related compounds. The results suggest that in 1, 5, 9-cyclododecatriene the homoconjugative π , π -interactions are sensitive to E/Z molecular topology while in 1, 9 -cyclohexadecadienes they are not. We have analyzed both π -ionization energies and σ -onset energies in order to unravel relative importance of through-space and through-bond interactions. We propose a new trans rule for monocyclic olefins.
photoelectron spectra (UPS); isomeric monocyclic trienes and dienes; semiempirical MO calculations
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