Access to ligand-stabilized PH-containing phosphenium complexes

While the chemistry of phosphenium compounds, including metal complexes thereof, is very well established, few derivatives having a P-H bond have been described, yet. This work describes rational access to donor-stabilised phosphenium metal complexes possessing a P-H bond using protonation reactions...

Full description

Saved in:
Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2024-02, Vol.53 (6), p.2517-2525
Main Authors: Biskup, David, Schnakenburg, Gregor, Espinosa Ferao, Arturo, Streubel, Rainer
Format: Article
Language:English
Subjects:
Adducts
Coordination compounds
Hydrogen bonds
Phosphorus
Protonation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:While the chemistry of phosphenium compounds, including metal complexes thereof, is very well established, few derivatives having a P-H bond have been described, yet. This work describes rational access to donor-stabilised phosphenium metal complexes possessing a P-H bond using protonation reactions of stable phosphinidene complex adducts. While most Brønsted-Lowry acids yield formal 1,1-addition products at the phosphorus centre under the loss of the donor, super-strong acids having weakly coordinating anions enable access to donor-stabilised P-H phosphenium complex salts. The latter possess N -methylimidazole as a donor (to phosphorus) and the N-P interaction has been studied theoretically. Addition of acids H-X at ligand-stabilized phosphinidene complexes forms P-H/P-X phosphane complexes whereas P-H containing phosphenium complex adducts are formed with superstrong acids. Detailed quantum chemical calculations provide further insights.
ISSN:1477-9226
1477-9234
DOI:10.1039/d3dt03869f