The sign of the four-bond FH coupling in methoxyflurane

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The methoxyflurane NMR spectrum was reexamined looking for a through-space transmitted four-bond FH coupling. This coupling was measured and its sign determined relative to the corresponding vicinal FH coupling. This sign determination required a triple irradiation technique, which is also described...

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Autores principales: Balonga, P.E., Kowalewski, V.J., Contreras, R.H.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_05848539_v42_n1_p23_Balonga
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_05848539_v42_n1_p23_Balonga2023-10-03T15:36:02Z The sign of the four-bond FH coupling in methoxyflurane Balonga, P.E. Kowalewski, V.J. Contreras, R.H. The methoxyflurane NMR spectrum was reexamined looking for a through-space transmitted four-bond FH coupling. This coupling was measured and its sign determined relative to the corresponding vicinal FH coupling. This sign determination required a triple irradiation technique, which is also described. A Karplus-like equation for the vicinal FH couplings yields the relative populations of both preferential conformers, and determines the positive sign of both three- and four-bond FH couplings. © 1986. Fil:Balonga, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kowalewski, V.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Contreras, R.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05848539_v42_n1_p23_Balonga
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The methoxyflurane NMR spectrum was reexamined looking for a through-space transmitted four-bond FH coupling. This coupling was measured and its sign determined relative to the corresponding vicinal FH coupling. This sign determination required a triple irradiation technique, which is also described. A Karplus-like equation for the vicinal FH couplings yields the relative populations of both preferential conformers, and determines the positive sign of both three- and four-bond FH couplings. © 1986.
format JOUR
author Balonga, P.E.
Kowalewski, V.J.
Contreras, R.H.
spellingShingle Balonga, P.E.
Kowalewski, V.J.
Contreras, R.H.
The sign of the four-bond FH coupling in methoxyflurane
author_facet Balonga, P.E.
Kowalewski, V.J.
Contreras, R.H.
author_sort Balonga, P.E.
title The sign of the four-bond FH coupling in methoxyflurane
title_short The sign of the four-bond FH coupling in methoxyflurane
title_full The sign of the four-bond FH coupling in methoxyflurane
title_fullStr The sign of the four-bond FH coupling in methoxyflurane
title_full_unstemmed The sign of the four-bond FH coupling in methoxyflurane
title_sort sign of the four-bond fh coupling in methoxyflurane
url http://hdl.handle.net/20.500.12110/paper_05848539_v42_n1_p23_Balonga
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AT contrerasrh thesignofthefourbondfhcouplinginmethoxyflurane
AT balongape signofthefourbondfhcouplinginmethoxyflurane
AT kowalewskivj signofthefourbondfhcouplinginmethoxyflurane
AT contrerasrh signofthefourbondfhcouplinginmethoxyflurane
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