Publication details

Reakce halogenidů fosforitých s N-donorovými Lewisovými bazemi

Title in English Reactions of phosphorus(III) halides with N-donor Lewis bases


Year of publication 2005
Type Article in Periodical
Magazine / Source ChemZi
MU Faculty or unit

Faculty of Science

Field Inorganic chemistry
Keywords Phosphorus trihalides; nitrogen donors; donor-acceptor complexes; dihalogenophosphenium cations; halogenophosphenium cations
Description Reactions between phosphorus trihalides and pyridine or 4-dimethylaminopyridine (DMAP) have been studied to ascertain which of them form donor-acceptor complexes and to elucidate their molecular structures. While PF3 does not react with neither pyridine nor DMAP, PCl3 does with DMAP giving an 1:1 adduct of partly ionic structure [(DMAP)PCl2]+Cl-. PBr3 forms with pyridine and DMAP analogous complexes, however, with exces of DMAP could be isolated an 1:2 adduct. Its single crystal X-ray structure determination revealed an almost ionic structure with a donor-stabilized bromophosphenium cation [(DMAP)2PBr]+[Br-]2 and surprisingly short (1.763A) N-P bonds.
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