The isotope-induced chemical shifts 1 14/15 N( 31 P) were determined at natural abundance of 15 N by using HEED INEPT experiments. A dependence of 1 14/15 N( 31 P) on the substituents at nitrogen was found (alkyl < H < aryl; increasingly negative values). The magnitude and sign of the coupling const
31P chemical shifts in N-aryliminotriphenylphosphoranes
✍ Scribed by Elizabeth M. Briggs; Geoffrey W. Brown; Peter M. Cairns; Josef Jiricny; Mohamed F. Meidine
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 119 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
^31^P chemical shifts in N‐aryliminotriphenylphosphoranes and the corresponding N‐methylated phosphonium salts are presented. They can be correlated with those theories of the bonding in phosphorus‐nitrogen ylides which involve partial double bonding as a result of p^π^–d^π^ overlap.
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