Lookup NU author(s): Dr Keith Izod,
Dr Paul Waddell,
Dr Mike Probert
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
A rare P-E π-interaction between the lone pair of a planar phosphorus center and the vacant p-orbital at the germanium or tin center provides efficient stabilization for phosphorus-substituted tetrylenes (R2P)2E [E = Ge, Sn] and enables the isolation of the first example of a compound with a crystallographically authenticated P=Sn bond. Subtle changes in the electronic properties of the bulky aryl substituents in these compounds change the preference for planar versus pyramidal phosphorus centers in the solid state; however, variable-temperature NMR spectroscopy indicates that in solution these species are subject to a dynamic equilibrium which interconverts the planar and pyramidal phosphorus centers. Consistent with this, DFT studies suggest that there is only a small energy difference between the planar and pyramidal forms of these compounds and reveal a small singlet-triplet energy separation, suggesting potentially interesting reactivities.
Author(s): Izod K, Evans P, Waddell PG, Probert MR
Publication type: Article
Publication status: Published
Journal: Inorganic Chemistry
Online publication date: 30/09/2016
Acceptance date: 22/09/2016
ISSN (print): 0020-1669
ISSN (electronic): 1520-510X
Publisher: Americal Chemical Society
Data Source Location: http://dx.doi.org/10.17634/154300-31
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