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Title: n,π-interactions in polycyclic unsaturated ketones: Photoelectron spectroscopic study
Authors: Kovač, B.
Novak, I. 
Mlinarić-Majerski, K.
Vinković, M.
Kaselj, M.
Issue Date: 1994
Citation: Kovač, B.,Novak, I.,Mlinarić-Majerski, K.,Vinković, M.,Kaselj, M. (1994). n,π-interactions in polycyclic unsaturated ketones: Photoelectron spectroscopic study. Journal of Organic Chemistry 59 (11) : 3033-3036. ScholarBank@NUS Repository.
Abstract: He I photoelectron spectra (PE) of several β,γ-unsaturated polycyclic ketones, their parent ketones, and alkenes have been measured. The assignment of spectra is based on semiempirical MO calculations (PM3 method) and empirical arguments. Endo-derivatives showed larger HOMO/SHOMO band separation than exo-cyclic unsaturated ketones. The results of MO calculations are in good agreement with this general trend. Strikingly different photochemical transformations and π* ⇐ n electronic transition intensities, exhibited by the two groups of compounds, can be rationalized within the framework of oxygen lone pair ↔ π bond interactions. © 1994 American Chemical Society.
Source Title: Journal of Organic Chemistry
ISSN: 00223263
Appears in Collections:Staff Publications

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