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- Title
A "Push–Pull" Stabilized Phosphinidene Supported by a Phosphine‐Functionalized β‐Diketiminato Ligand.
- Authors
Bestgen, Sebastian; Mehta, Meera; Johnstone, Timothy C.; Roesky, Peter W.; Goicoechea, Jose M.
- Abstract
The use of a bis(diphenyl)phosphine functionalized β‐diketiminato ligand, [HC{(CH3)C}2{(ortho‐[P(C6H5)2]2C6H4)N}2]− (PNac), as a support for germanium(II) and tin(II) chloride and phosphaketene compounds, is described. The conformational flexibility and hemilability of this unique ligand provide a versatile coordination environment that can accommodate the electronic needs of the ligated elements. For example, chloride abstraction from [(PNac)ECl] (E=Ge, Sn) affords the cationic germyliumylidene and stannyliumylidene species [(PNac)E] in which the pendant phosphine arms associate more strongly with the Lewis acidic main group element centers, providing further electronic stabilization. In a similar fashion, chemical decarbonylation of the germanium phosphaketene [(PNac)Ge(PCO)] with tris(pentafluorophenyl)borane affords a "push–pull" stabilized phosphinidene in which one of the phosphine groups of the ligand backbone associates with the low valent phosphinidene center.
- Subjects
PHOSPHINIDENES; GERMANIUM; BORANES; DECARBONYLATION; TIN; COPPER chlorides
- Publication
Chemistry - A European Journal, 2020, Vol 26, Issue 41, p9024
- ISSN
0947-6539
- Publication type
Academic Journal
- DOI
10.1002/chem.202001762