Vergleich der NMR-Parameter von Phosphaalkinen und Nitrilen / Comparison of NMR Parameters of Phosphaalkynes and Nitriles
Open Access
- 1 July 1988
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 43 (7) , 923-926
- https://doi.org/10.1515/znb-1988-0722
Abstract
The values 1J(15N≡13C) from 15N satellites in the 13C NMR spectra for two nitriles [C6H5-C≡N, (CH3)2CH-C≡N] have been determined and δ(15N) for trimethylsilylcyanide has been con- firmed. This completed a set of NMR parameters in order to compare phosphaalkynes and nitriles. Linear relationships emerged for the following NMR parameters of phosphaalkynes and nitriles: δ(31Pp≡c)/δ(15NN≡C), δ(13CP≡C)/δ(13CN≡C) and 1J(31P=13C)/1J(15N≡13C). On the basis of the latter relationship a positive sign for 1J(31P≡13C) has been proposed. This is also corroborated by the sub- stituent-induced changes in the magnitude of 1J(13C≡13C) in corresponding alkynes.Keywords
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