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X‐ray Spectroscopic Verification of the Active Species in Iron‐Catalyzed Cross‐Coupling Reactions
Author(s) -
Schoch Roland,
Desens Willi,
Werner Thomas,
Bauer Matthias
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201303340
Subject(s) - catalysis , aryl , coupling reaction , chemistry , reagent , palladium , combinatorial chemistry , reaction mechanism , alkyl , photochemistry , organic chemistry
X‐ray absorption : The activation of the pre‐catalyst as well as the catalytically active species and reaction mechanism of Fe‐catalyzed cross‐couplings were investigated by X‐ray absorption spectroscopy. The active catalytic components are small iron clusters with three to four Fe I centers. The reaction seems to proceed by an Fe I /Fe III mechanism (see figure).