✦ LIBER ✦

Phosphoric amides. Bridge effect in geminal coupling constants between 31P and 13C nuclei

✍ Scribed by T. A. Modro; A. M. Modro; P. Bernatowicz; W. Schilf; L. Stefaniak

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 141 KB
Volume: 36
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199806)36:13<s212::aid-omr309>3.0.co;2-y

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✦ Synopsis

Full NMR spectral characteristic of eight phosphoric amides is presented. The results show that the geminal coupling constants are strongly inÑuenced by the atom located between the coupled nuclei. SpinÈspin interactions 2J(31P,13C) seem to be transmitted in investigated rings mainly by the two-bond pathway, and only to a small degree via three-bond mechanism.