Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments

The cis conformation of the hydroxyl with respect to the nitro group in 2,4-dinitrophenol under fast exchange conditions and the consequent persistence of the intramolecular hydrogen bond are determined. These facts emerge from the existence of a scalar-coupling-of-the-first-kind relaxation interact...

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Autores principales: Balonga, P.E., Vásquez, C., Contreras, R.H., Kowalewski, V.J., de Kowalewski, D.G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222364_v59_n1_p58_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_00222364_v59_n1_p58_Balonga2023-10-03T14:28:46Z Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments Balonga, P.E. Vásquez, C. Contreras, R.H. Kowalewski, V.J. de Kowalewski, D.G. The cis conformation of the hydroxyl with respect to the nitro group in 2,4-dinitrophenol under fast exchange conditions and the consequent persistence of the intramolecular hydrogen bond are determined. These facts emerge from the existence of a scalar-coupling-of-the-first-kind relaxation interaction linking the phenolic and the ring protons of the compound which is directly established by a nuclear Overhauser effect experiment. Relaxation information is incidentally obtained. Decoupling experiments in solutions of 2-nitro-4-chlorophenol were made showing similar existence of the cis conformation. © 1984. Fil:Balonga, P.E. 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. Fil:Kowalewski, V.J. 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_00222364_v59_n1_p58_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 cis conformation of the hydroxyl with respect to the nitro group in 2,4-dinitrophenol under fast exchange conditions and the consequent persistence of the intramolecular hydrogen bond are determined. These facts emerge from the existence of a scalar-coupling-of-the-first-kind relaxation interaction linking the phenolic and the ring protons of the compound which is directly established by a nuclear Overhauser effect experiment. Relaxation information is incidentally obtained. Decoupling experiments in solutions of 2-nitro-4-chlorophenol were made showing similar existence of the cis conformation. © 1984.
format JOUR
author Balonga, P.E.
Vásquez, C.
Contreras, R.H.
Kowalewski, V.J.
de Kowalewski, D.G.
spellingShingle Balonga, P.E.
Vásquez, C.
Contreras, R.H.
Kowalewski, V.J.
de Kowalewski, D.G.
Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments
author_facet Balonga, P.E.
Vásquez, C.
Contreras, R.H.
Kowalewski, V.J.
de Kowalewski, D.G.
author_sort Balonga, P.E.
title Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments
title_short Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments
title_full Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments
title_fullStr Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments
title_full_unstemmed Conformational analysis in 2,4-dinitrophenol by nuclear Overhauser effect experiments
title_sort conformational analysis in 2,4-dinitrophenol by nuclear overhauser effect experiments
url http://hdl.handle.net/20.500.12110/paper_00222364_v59_n1_p58_Balonga
work_keys_str_mv AT balongape conformationalanalysisin24dinitrophenolbynuclearoverhausereffectexperiments
AT vasquezc conformationalanalysisin24dinitrophenolbynuclearoverhausereffectexperiments
AT contrerasrh conformationalanalysisin24dinitrophenolbynuclearoverhausereffectexperiments
AT kowalewskivj conformationalanalysisin24dinitrophenolbynuclearoverhausereffectexperiments
AT dekowalewskidg conformationalanalysisin24dinitrophenolbynuclearoverhausereffectexperiments
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