Cationic Diiodo‐Phosphoranides through Oxidative I 2 Addition to Tricyclic Phosphamethine Cyanines

Reaction of methylene‐ and ethylene‐bridged bis‐imidazolium salts with white phosphorus in the presence of KO t Bu furnished moderate yields of tricyclic bis‐imidazolio‐phosphanide halides. Further oxidation of the products with one equivalent of I 2 gave bis‐imidazolio‐diiodophosphoranide iodides....

Full description

Saved in:
Bibliographic Details
Published in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2018-11, Vol.644 (21), p.1304-1310
Main Authors: Cicač‐Hudi, Mario, Schlindwein, Simon H., Feil, Christoph M., Nieger, Martin, Gudat, Dietrich
Format: Article
Language:English
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:Reaction of methylene‐ and ethylene‐bridged bis‐imidazolium salts with white phosphorus in the presence of KO t Bu furnished moderate yields of tricyclic bis‐imidazolio‐phosphanide halides. Further oxidation of the products with one equivalent of I 2 gave bis‐imidazolio‐diiodophosphoranide iodides. All newly prepared compounds were characterized by analytical and spectroscopic data and single‐crystal XRD studies. DFT calculations provide evidence for substantial stabilization of cyclic bis‐imidazolio‐phosphanide cations by π‐conjugation effects and suggest describing the bis‐imidazolio‐diiodophosphoranide cations as charge‐transfer complexes of dicationic iodophosphines with iodide.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.201800264