Issue 41, 2016

Donor-substituted phosphanes – surprisingly weak Lewis donors for phosphenium cation stabilisation

Abstract

Paradoxically, N- and O-donor substituted tri-arylphosphanes are shown to be weaker donors than PPh3 when binding the soft Lewis acid moiety [PPh2]+. This arises from internal solvation and rehybridisation at phosphorus, precluding chelation and increasing steric demand, in direct contrast to coordination modes observed for metal complexes.

Graphical abstract: Donor-substituted phosphanes – surprisingly weak Lewis donors for phosphenium cation stabilisation

Supplementary files

Article information

Article type
Communication
Submitted
06 Sep 2016
Accepted
20 Sep 2016
First published
21 Sep 2016
This article is Open Access
Creative Commons BY license

Dalton Trans., 2016,45, 16125-16129

Donor-substituted phosphanes – surprisingly weak Lewis donors for phosphenium cation stabilisation

E. R. Clark, A. M. Borys and K. Pearce, Dalton Trans., 2016, 45, 16125 DOI: 10.1039/C6DT03478K

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