McFarlane, W., Rycroft, D. S. and Turner, C. J. (1977) Studies of selenium–carbon nuclear spin–spin coupling by magnetic multiple resonance. Bulletin des Sociétés Chimiques Belges, 86(6), pp. 457-463.
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Abstract
1H–{77}Se and 13C–{1H} magnetic double resonance experiments have been used to give the signs of 77Se–13C and 77Se–1H coupling constants in a range of organoselenium compounds in which the selenium atom has zero to 3 electron lone pairs. 1J(77Se–13C) is always negative but receives a substantial positive increment when the selenium atom loses all its electron lone pairs. The variations of 1J(77Se–13C) depend in a complex way upon molecular structure, but the observation of a magnitude of more than 45 Hz for this coupling constant is generally indicative of the presence of a direct selenium–carbon bond. 3J(77Se--H) is found to be always positive, as is 2J(77Se--H) except in species in which the selenium atom has no electron lone pairs.
Item Type: | Articles |
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Keywords: | NMR spectroscopy, multiple resonance. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Rycroft, Dr David |
Authors: | McFarlane, W., Rycroft, D. S., and Turner, C. J. |
Subjects: | Q Science > QD Chemistry |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Bulletin des Sociétés Chimiques Belges |
Journal Abbr.: | Bull. Soc. Chim. Belg. |
ISSN: | 0037-9646 |
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