Artículo

Balonga, P.E.; Kowalewski, V.J.; Contreras, R.H. "1H, 13C and 19F NMR studies on fluorinated ethers" (1988) Spectrochimica Acta Part A: Molecular Spectroscopy. 44(8):819-822
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Abstract:

The enflurane and ethoxyflurane 1H, 13C and 19F NMR spectra are examined-including sign determination of FF and FH couplings-and considered in the light of previously reported results for methoxyflurane. Conformational differences between methoxyflurane and the former two molecules are indicated by through space FH coupling constants and by the nonequivalence of geminal fluorine nuclei. Populations of conformers about the CC bond are estimated. © 1988.

Registro:

Documento: Artículo
Título:1H, 13C and 19F NMR studies on fluorinated ethers
Autor:Balonga, P.E.; Kowalewski, V.J.; Contreras, R.H.
Filiación:Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, C. Universitaria Pab. I, 1428 Buenos Aires, Argentina
Año:1988
Volumen:44
Número:8
Página de inicio:819
Página de fin:822
DOI: http://dx.doi.org/10.1016/0584-8539(88)80148-X
Título revista:Spectrochimica Acta Part A: Molecular Spectroscopy
Título revista abreviado:Spectrochim. Acta Part A Mol. Spectrosc.
ISSN:05848539
CODEN:SAMCA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05848539_v44_n8_p819_Balonga

Referencias:

  • Facelli, Giribet, Contreras, The use of partially restricted molecular orbitals to investigate transmission mechanisms of spin-spin coupling constants. III—an INDO study of long-range FH couplings in fluorinated derivatives of toluene (1982) Organic Magnetic Resonance, 19, p. 138
  • Engelmann, Contreras, Transmission mechanisms of spin-spin coupling constants within theCHF approximation: Their study using inner projections of the polarization propagator (1983) International Journal of Quantum Chemistry, 23, p. 1033
  • Scuseria, Contreras, Ab initio calculations of through-space nuclear spin?spin coupling constants with theIPPP method (1986) International Journal of Quantum Chemistry, 20 S, p. 603
  • Schaefer, Rowbothan, (1974) Chem. Phys. Lett., 29, p. 633
  • Barfield, Walter, Clark, Gribble, Haden, Kelly, Le Houllier, Proton, carbon-13 and fluorine-19 NMR studies ofN-alkyl-8-fluoroquinolinium halides: Relative signs of through-space1H19F and13C19F coupling constants (1982) Organic Magnetic Resonance, 20, p. 92
  • Yamamoto, Oki, (1985) Tetrahedron Lett., 26, p. 457
  • Yamamoto, Oki, (1984) J. org. Chem., 49, p. 1913
  • Balonga, Kowalewski, Contreras, (1986) Spectrochim. Acta, 42 A, p. 23
  • Dadok, Sprecher, (1974) J. magn. Reson., 13, p. 243
  • de Azúa, Diz, Giribet, Contreras, A polarization propagator analysis of through-space spin-spin coupling constants:19F-19F couplings (1986) International Journal of Quantum Chemistry, 20 S, p. 585
  • Dyer, Ragsdale, (1967) J. Am. chem. Soc., 89, p. 1528
  • Koheler, Stone, Shelton, Jarmagin, (1978) J. magn. Reson., 30, p. 75
  • Karplus, (1963) J. Am. chem. Soc., 85, p. 2870
  • Hamman, Béguin, Charlon, Luu-Duc, Conformational studies on 2-fluoro-1,2-disubstituted ethanes by NMR spectroscopy. Influence of electronegativity on vicinal proton-proton and fluorine-proton coupling constants (1983) Organic Magnetic Resonance, 21, p. 361
  • Hammer, Chandrasegaran, (1984) J. Am. chem. Soc., 106, p. 1543
  • Huggins, (1953) J. Am. chem. Soc., 75, p. 4123
  • Cavanaugh, Dailey, (1961) J. chem. Phys., 34, p. 1099
  • Huheey, (1965) J. phys. Chem., 69, p. 3284

Citas:

---------- APA ----------
Balonga, P.E., Kowalewski, V.J. & Contreras, R.H. (1988) . 1H, 13C and 19F NMR studies on fluorinated ethers. Spectrochimica Acta Part A: Molecular Spectroscopy, 44(8), 819-822.
http://dx.doi.org/10.1016/0584-8539(88)80148-X
---------- CHICAGO ----------
Balonga, P.E., Kowalewski, V.J., Contreras, R.H. "1H, 13C and 19F NMR studies on fluorinated ethers" . Spectrochimica Acta Part A: Molecular Spectroscopy 44, no. 8 (1988) : 819-822.
http://dx.doi.org/10.1016/0584-8539(88)80148-X
---------- MLA ----------
Balonga, P.E., Kowalewski, V.J., Contreras, R.H. "1H, 13C and 19F NMR studies on fluorinated ethers" . Spectrochimica Acta Part A: Molecular Spectroscopy, vol. 44, no. 8, 1988, pp. 819-822.
http://dx.doi.org/10.1016/0584-8539(88)80148-X
---------- VANCOUVER ----------
Balonga, P.E., Kowalewski, V.J., Contreras, R.H. 1H, 13C and 19F NMR studies on fluorinated ethers. Spectrochim. Acta Part A Mol. Spectrosc. 1988;44(8):819-822.
http://dx.doi.org/10.1016/0584-8539(88)80148-X