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Reduction of Dioxygen by Radical/B( p ‐C 6 F 4 X) 3 Pairs to Give Isolable Bis(borane)superoxide Compounds
Author(s) -
Tao Xin,
Daniliuc Constantin G.,
Janka Oliver,
Pöttgen Rainer,
Knitsch Robert,
Hansen Michael Ryan,
Eckert Hellmut,
Lübbesmeyer Maximilian,
Studer Armido,
Kehr Gerald,
Erker Gerhard
Publication year - 2017
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.201709309
Subject(s) - borane , electron paramagnetic resonance , chemistry , radical , superoxide , boron , lewis acids and bases , medicinal chemistry , crystallography , photochemistry , adduct , ion , crystal structure , spectroscopy , organic chemistry , catalysis , nuclear magnetic resonance , physics , enzyme , quantum mechanics
Triplet dioxygen was reduced by TEMPO or trityl radicals in the presence of two molar equivalents of the strong B( p ‐C 6 F 4 X) 3 (X: F or H) boron Lewis acids under mild conditions to give the bis(borane)superoxide systems 2 . The sensitive radical anion species were isolated and characterized by methods including X‐ray crystal structure analysis and EPR spectroscopy.