Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/41157
Título : Alkyl group effect on the conformational isomerism of trans-2-bromoalkoxycyclohexanes analyzed by NMR spectroscopy and theoretical calculations
Autor: Silla, Josué M.
Cormanich, Rodrigo A.
Duarte, Claudimar J.
Freitas, Matheus P.
Ramalho, Teodorico C.
Barbosa, Thaís M.
Santos, Francisco P.
Tormena, Cláudio F.
Rittner, Roberto
Palavras-chave: Reaction products
Molecular properties
Solvents
Conformation
Molecular structure
Publicador: American Chemical Society (ACS)
Data da publicação: 27-Jul-2011
Referência: SILLA, J. M. et al. Alkyl group effect on the conformational isomerism of trans-2-bromoalkoxycyclohexanes analyzed by NMR spectroscopy and theoretical calculations. The Journal of Physical Chemistry, [S.l.], v. 115, n. 35, p. 10122-10127, July 2011. DOI: 10.1021/jp206136t.
Abstract: Suitable 3JH,H coupling constants and theoretical calculations were used to define the conformational preferences of trans-2-bromoalkoxycyclohexanes (alkoxy = OMe, OEt, OiPr, and OtBu) for the isolated molecule and as a function of the medium. The diaxial conformer was preponderant, or at least similarly populated to the diequatorial form, for the tert-butoxy derivative only, while the diequatorial conformer was prevalent for the remaining alkoxy derivatives (except for the OMe derivative in CCl4 solution). The conformational behavior of these compounds was analyzed on the basis of classical steric effects and attractive electron delocalizations, by means of natural bond orbital analysis.
URI: https://pubs.acs.org/doi/10.1021/jp206136t
http://repositorio.ufla.br/jspui/handle/1/41157
Idioma: en_US
Aparece nas coleções:DQI - Artigos publicados em periódicos

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