The relative stabilities of cyclic dicationic derivatives of diphosphanes with three (3P) or four (4P) linked phosphorus atoms.

Autor: Bashforth R; Chemistry Department, University of Durham, South Road, Durham, DH1 3LE, UK., Boyall AJ, Coffer PK, Dillon KB, Goeta AE, Howard JA, Kenwright AM, Probert MR, Shepherd HJ, Thompson AL
Jazyk: angličtina
Zdroj: Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2012 Jan 28; Vol. 41 (4), pp. 1165-72. Date of Electronic Publication: 2011 Nov 24.
DOI: 10.1039/c1dt11549a
Abstrakt: Reaction of a diphosphane with a chlorophosphane in the presence of SnCl(2) or AlCl(3) leads to the formation of dicationic heterocycles with three (3P) or four (4P) linked phosphorus atoms. Some 3P derivatives with small alkyl substituents may also be prepared by direct alkylation of cyclic triphosphenium ions. Several new species were prepared in solution, some of which were isolated and characterised by single-crystal X-ray diffraction. Investigations into the factors favouring formation of 3P or 4P species are described.
Databáze: MEDLINE