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Updated: Mar 16, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
Coordination chemistry of a low-coordinate non-metal element: the case of electrophilic terminal phosphinidene
José Manuel Villalba Franco1, Gregor Schnakenburg, Arturo Espinosa Ferao
1Institut für Anorganische Chemie der Reinischen Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str.1, 53121 Bonn, Germany. r.streubel@uni-bonn.de.
Abstract:
3-Imino-azaphosphiridine complex 1 reacts with carbon monoxide to give 1,3-azaphosphetidinone complex 2, whereas with isocyanides 3a,b substitution occurred to yield complexes 4a,b. Oxidation of 1 using elemental sulfur afforded the first 1,3,2-thiazaphosphetidine-4-imine complex 5. DFT calculations provide insight into a manifold of pathways based on a common intermediate, a carbodiimide-to-phosphinidene complex, leading to P-N and P-C bond insertion products as well as ligand substitution products.
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