Electronic spectroscopy of jet-cooled phenylbutadienyltrimethylcyclohexene
| Autor: | J.P. Finley, John R. Cable |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Steric effects
chemistry.chemical_classification Jet (fluid) Double bond Cyclohexene General Physics and Astronomy Ring (chemistry) Electron spectroscopy Molecular physics Molecular electronic transition chemistry.chemical_compound Nuclear magnetic resonance chemistry Ionization Physical and Theoretical Chemistry |
| Zdroj: | Chemical Physics Letters. 228:9-14 |
| ISSN: | 0009-2614 |
| Popis: | The resonance-enhanced ionization spectrum of a trimethylcyclohexene compound in which the cyclohexene ring is formally conjugated to a phenylbutadienyl system has been recorded in a supersonic jet expansion. Two strong origin transitions, associated with different ground-state conformers, were identified, indicating that the electronic transition occurs with little change in torsional geometry. The frequencies at which these origin transitions occur indicate that the torsional angle betwwen the cyclohexene double bond and the phenylbutadienyl system is 15° from perpendicular. Similar electronic and steric forces are expected to govern the ground-state torsional geometry of the β-ionylidene ring in retinal. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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