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Long‐Lived Radical Cations of Monocyclic Arenes at Room Temperature Obtained by NbF 5 Acting as an Oxidizing Agent and Counterion Precursor
Author(s) -
Marchetti Fabio,
Pinzino Calogero,
Zacchini Stefano,
Pampaloni Guido
Publication year - 2010
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.201001572
Subject(s) - oxidizing agent , counterion , chemistry , benzene , salt (chemistry) , fluoride , radical ion , acceptor , medicinal chemistry , inorganic chemistry , organic chemistry , ion , physics , condensed matter physics
Salt of the earth : Radical cation salts of monocyclic arenes, including benzene, have been obtained in a reaction where niobium pentafluoride behaves both as an oxidizing agent (conversion into NbF 4 ) and fluoride acceptor (to afford the counterion [Nb 2 F 11 ] − , see picture). Anion–π‐electron density interactions, as revealed by experimental and computational studies, are crucial in providing unprecedented inertness to the radical cations.