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Type: Journal article
Title: ¹³C Chemical shifts and ¹³C-¹⁵N coupling constants of some ¹⁵N‐labelled bridgehead nitro compounds
Other Titles: 13C Chemical shifts and 13C-15N coupling constants of some 15N-labelled bridgehead nitro compounds
Author: Della, E.W.
Janowski, W.K.
Kasum, B.
Kirkbride, P.K.
Shirley, N.
Citation: Heteroatom Chemistry, 1992; 3(1):33-36
Publisher: Wiley
Issue Date: 1992
ISSN: 1042-7163
Statement of
Ernest W. Della, Wit K. Janowski, Bruno Kasum, K. Paul Kirkbride, and Neil J. Shirley
Abstract: Measurement of the ¹³C NMR spectra of the bridgehead nitro compounds 1a–5a has been performed. It is found that one‐bond ¹³C-¹⁵N coupling is not necessarily a reflection of the degree of s character of the bridgehead carbon exocyclic bonding orbital. Although the magnitude of vicinal coupling to the bridgehead carbon increases, in accordance with the number of three‐bond pathways available for transmission of spin information, coupling is actually reduced by opposing contributions from through‐space intramolecular orbital interactions.
Rights: © 1992 VCH Publishers, Inc.
DOI: 10.1002/hc.520030107
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