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Does the ipso‐carbon chemical shift tell us anything about the structure of phenylated phosphorus compounds?

Does the ipso‐carbon chemical shift tell us anything about the structure of phenylated phosphorus... The nuclear magnetic resonance signals exhibited by the ipso‐carbon atoms of a variety of phenylated phosphorus compounds were found to span over the remarkably wide range of + 162 to + 117 ppm. Nevertheless, these changes in chemical shifts have little diagnostic value. They are tentatively attributed to a charge‐mediated contraction and expansion of the C,P σ‐bond orbital on one hand and to a σ‐bond induced deformation of the aromatic π‐electron cloud on the other. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Heteroatom Chemistry Wiley

Does the ipso‐carbon chemical shift tell us anything about the structure of phenylated phosphorus compounds?

Heteroatom Chemistry , Volume 2 (5) – Jan 1, 1991

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References (25)

Publisher
Wiley
Copyright
Copyright © 1991 Wiley Subscription Services
ISSN
1042-7163
eISSN
1098-1071
DOI
10.1002/hc.520020503
Publisher site
See Article on Publisher Site

Abstract

The nuclear magnetic resonance signals exhibited by the ipso‐carbon atoms of a variety of phenylated phosphorus compounds were found to span over the remarkably wide range of + 162 to + 117 ppm. Nevertheless, these changes in chemical shifts have little diagnostic value. They are tentatively attributed to a charge‐mediated contraction and expansion of the C,P σ‐bond orbital on one hand and to a σ‐bond induced deformation of the aromatic π‐electron cloud on the other.

Journal

Heteroatom ChemistryWiley

Published: Jan 1, 1991

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