Photoelectron spectroscopy of monocyclic olefins

Igor Novak, Anthony W. Potts

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)14713-14718
Number of pages6
Issue number43
Publication statusPublished - 27 Oct 1997


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