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The Complexed Triphosphaallyl Radical, Cation, and Anion Family
Author(s) -
Scheer Manfred,
Kuntz Christian,
Stubenhofer Markus,
Linseis Michael,
Winter Rainer F.,
Sierka Marek
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200805892
Subject(s) - unpaired electron , chemistry , ion , radical ion , photochemistry , radical , medicinal chemistry , crystallography , organic chemistry
Radically complex : The photolytic reaction of [Cp*P{W(CO) 5 } 2 ] (Cp*=C 5 Me 5 ) with a diphosphene produces, via a radical intermediate, an air‐stable complexed triphosphaallyl radical, in which the unpaired electron is evenly distributed over both terminal P atoms. Oxidation of the radical leads to a triphosphaallyl cation, which is only stable at low temperatures in solution, whereas the stable triphosphaallyl anion is formed by reduction (see picture, Mes*=2,4,6‐tri‐ tert ‐butylphenyl).