## Abstract __The UV/Vis, infrared absorption, and Raman scattering spectra of 3′,4′‐dibutyl‐5,5″‐bis(dicyanomethylene)‐5,5″‐dihydro‐2,2′:5′,2″‐terthiophene have been analyzed with the aid of density functional theory calculations. The compound exhibits a quinoid structure in its ground electronic
Enamines. III. A theoretical and photoelectron spectroscopic study of the molecular and electronic structures of aziridine enamines
✍ Scribed by Klaus Müller; Felix Previdoli
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- German
- Weight
- 386 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The photoelectron (PE.) spectra of N‐vinylaziridine (1) and some methyl and ethyl substituted derivatives are discussed in the light of quantum‐chemical model calculations using the PRDDO SCF method. All aziridine enamines are found to exist as equilibrium mixtures of variable compositions, with an enamine‐type conformation (I) generally as the major and a trans‐bisected form (II) as the minor component.
📜 SIMILAR VOLUMES
## Abstract The polar Diels–Alder reactions of nitrosoalkenes with enamines have been studied using DFT methods at the B3LYP/6‐31G\* level of theory. These Diels–Alder reactions are characterized by a nucleophilic attack of the enamine at the conjugated position of the nitrosoalkene with concomitan