Revision of the α2 H value for N,N-dialkylhydroxylamines based on kinetic and spectroscopic measurements

DOI	Trouver le DOI : https://doi.org/10.1039/B102247O
Auteur	Rechercher : Astolfi, P.; Rechercher : Greci, L.; Rechercher : Paul, T.; Rechercher : Ingold, K. U.¹
Affiliation	Conseil national de recherches Canada
Format	Texte, Article
Sujet	Computational methods; Hydrogen bonds; Infrared spectroscopy; Reaction kinetics; Solvents; Hydrogen-atom abstraction; Kinetic solvents; Amines
Résumé	Kinetic solvent effects on hydrogen-atom abstraction from N,N-diethylhydroxylamine and N,N-dibenzylhydroxylamine by the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH·) indicated that these compounds are much weaker hydrogen-bond donors than implied by the currently accepted α2 H value of 0.453. Lower α2 H values were also obtained by monitoring 1 : 1 complex formation with two strong hydrogen-bond acceptors, HMPA and DMSO, in tetrachloromethane using IR spectroscopy. It is concluded that the α2 H value for sterically non-hindered N,N-dialkylhydroxylamines should be revised downward to 0.29.
Date de publication	2001
Dans	Journal of the Chemical Society, Perkin Transactions 2, nº 9 (2001) : 1631–1633.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	21276577
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	86b5b975-9f6b-40b4-8928-73ee552b4495
Enregistrement créé	2015-10-13
Enregistrement modifié	2020-03-27

Détails de la page