Synthesis, characterization, crystal and molecular structure of diphenyloxophosphinoethylenediamines

Bis-, tris- and tetrakis(diphenyloxophosphino)ethylenediamine compounds can be synthesized starting with ethylenediamine and diphenylchlorophosphine. Bis-, tris- and tetrakis(diphenyloxophosphino)ethylenediamine compounds can be synthesized starting with ethylenediamine and chlorodiphenylphosphine....

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Bibliographic Details
Published in:Polyhedron 2006-11, Vol.25 (16), p.3133-3137
Main Authors: Gümgüm, Bahattin, Akba, Osman, Durap, Feyyaz, Yıldırım, Leyla Tatar, Ülkü, Dinçer, Özkar, Saim
Format: Article
Language:English
Subjects:
(Diphenylphosphino)ethylenediamines
Aminophosphine
Chlorodiphenylphosphine
Crystal structure
Hydrogen bonding
NMR
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Summary:Bis-, tris- and tetrakis(diphenyloxophosphino)ethylenediamine compounds can be synthesized starting with ethylenediamine and diphenylchlorophosphine. Bis-, tris- and tetrakis(diphenyloxophosphino)ethylenediamine compounds can be synthesized starting with ethylenediamine and chlorodiphenylphosphine. Bis(diphenylphosphino)ethylenediamine and tris(diphenylphosphino)ethylenediamine are formed as intermediates and can be oxidized to the respective phosphine oxides by oxygen dissolved in the reaction solution, while tetrakis(diphenylphosphino)ethylenediamine is less liable to oxidation and its oxidation requires a stronger oxidizing agent such as hydrogen peroxide. All the three phosphine oxides and tetrakis(diphenylphosphino)ethylenediamine can be isolated as analytically pure solid materials and are fully characterized by elemental analysis, MS and NMR spectroscopies. The crystal and molecular structure of tris(diphenylphosphino)ethylenediamine was elucidated by single crystal X-ray diffraction analysis.
ISSN:0277-5387
DOI:10.1016/j.poly.2006.05.035