Dipole moments of pyrroles polarized by push-pull combination of substituents

Autor:	Lyubov N. Sobenina, Boris A. Trofimov, V. B. Modonov, R. I. Polovnikova, Tamara N. Aksamentova, R. N. Nesterenko, S. E. Korostova, Al'bina I. Mikhaleva
Rok vydání:	1987
Předmět:	chemistry.chemical_classification Bond dipole moment Double bond Aryl General Chemistry Electron Photochemistry Molecular physics Acceptor chemistry.chemical_compound Dipole chemistry Molecule Pyrrole
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 36:1218-1221
ISSN:	1573-9171 0568-5230
DOI:	10.1007/bf00956666
Popis:	1. In 2-aryl- and 2-hetaryl-5-trifluoroaeetylpyrroles, the interaction of substituants through the pyrrole ring causes a strong polarization of the molecule. 2. The dipole moments of 2-aryl-5-trifluoroaeetylpyrroles are very sensitive to the donor properties of the aryl group and are linearly related to a constants of the para-substituents in the benzene ring (σ=3.35). 3. The N-vinyl group markedly intensifies the shift of the electrons in the direction of the acceptor as the result of the polarization of the double bond, compensating the positive charge on the nitrogen atom.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4e3feed6232df3a05ff3fa55b9a07139 https://doi.org/10.1007/bf00956666 Zobrazit plný text záznamu Full text from SpringerLink