Interpretation of β-hydrogen hyperfine splittings in the electron spin resonance of the 3-methyl-3-phenylbut-1-yl radical

DOI	Trouver le DOI : https://doi.org/10.1021/j150653a001
Auteur	Rechercher : Ingold, K. U.¹; Rechercher : Nonhebel, D.C.; Rechercher : Wildman, T.A.¹
Affiliation du nom	Conseil national de recherches du Canada
Format	Texte, Article
Résumé	At low temperatures the PhCMe2CH2CH2 radical preferentially adopts a conformation in which the radical center and the phenyl substituent are gauche to each other when viewed along the Cβ-Cγ bond. The β-hydrogens are magnetically nonequivalent and the magnitudes of their hyperfine splitting represent an average over rotation about the Cα-Cβ bond. On the basis of the equation αHβ= 54〈cos2 θ〉 G, we have derived a simple, two-component rotational potential which supports the suggestion that there is a weak, attractive interaction between the singly occupied Cα 2pz orbital and the π-cloud of the phenyl substituent. The conformations of some related radicals are also discussed.
Date de publication	1984
Dans	The Journal of Physical Chemistry 88, nº 9 (1984) : 1675–1678.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro NPARC	21276773
Exporter la notice	Exporter en format RIS
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Identificateur de l’enregistrement	619ba00c-ad98-4b19-bce1-3c961b387d3e
Enregistrement créé	2015-10-13
Enregistrement modifié	2020-03-13