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Phosphorus–nitrogen rotation barriers: Further studies

✍ Scribed by S. Distefano; H. Goldwhite; E. Mazzola

Book ID
102528213
Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
394 KB
Volume
6
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Phosphorus–nitrogen rotation barriers have been determined by low temperature NMR methods in a variety of compounds of the type RP(X)NR~2~′. The observed activation parameters are concentration and solvent independent. Increasing the bulk of substituents on nitrogen increases the barrier. Phosphonamidous fluorides (X = F) have lower barriers than the corresponding chlorides (X = Cl). Increasing the bulk of substituents on phosphorus decreases the barrier.

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