C13 SPLITTINGS IN SOME SUBSTITUTED BENZENES
- 1 September 1962
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 40 (9), 1758-1762
- https://doi.org/10.1139/v62-269
Abstract
C13 sidebands in the proton spectra of some symmetrically substituted benzenes have been used to obtain carbon–hydrogen coupling constants as well as proton coupling constants.A long-range carbon–hydrogen coupling constant has also been found. Substituents which act as electron acceptors in an inductive manner are found to increase the C13H coupling constants by as much as 20 c.p.s. The patterns of the sidebands are discussed and possible errors in first-order analyses are indicated.Keywords
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