Publication details

Halogenid-oxidy fosforečné a halogenofosforečnany jako Lewisovy baze a kyseliny

Title in English Phosphorus(V) oxohalides and halogenophosphates as Lewis bases and acids
Authors

ČERNÍK Miloš ŽÁK Zdirad

Year of publication 2002
Type Article in Proceedings
Conference Chemické Listy, Sborník 54. sjezdu chemických společností
MU Faculty or unit

Faculty of Science

Citation
Field Inorganic chemistry
Keywords Phosphoryl halides; N-donors; Lewis ampholytes; Betaines
Description The behavior of various phosphoryl halides and halogenophosphates toward Lewis acids and bases has been compared. While with strong Lewis acids only simple donor-acceptor complexes, e.g. F3PO.Sb2F10, Cl3PO.SbCl5 or (PO2F2.2AsF5)-, are formed, reactions with Lewis bases proceed in rather complicated way and their results are often conspicuously different. Thus, pyridine reacts with phosphoryl fluoride to a dimeric adduct, [(py)POF3]2, with hexacoordinated phosphorus atoms. However, pyridine does not react with POCl3, while with POBr3 it surprisingly gives [(py)2PO2]Br3, a salt of donor-stabilized form of the so far unknown cation [PO2]+.
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