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Thermally Induced Stoichiometric and Catalytic O‐Atom Transfer by a Non‐Heme Iron( III )–Nitro Complex: First Example of Reversible {Fe–NO} 7 ↔Fe III ‐NO 2 Transformation in the Presence of Dioxygen
Author(s) -
Patra Apurba K.,
Afshar Raman K.,
Rowland John M.,
Olmstead Marilyn M.,
Mascharak Pradip K.
Publication year - 2003
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.200352070
Subject(s) - stoichiometry , chemistry , catalysis , nitro , medicinal chemistry , oxygen atom , atom (system on chip) , oxygen , crystallography , stereochemistry , molecule , organic chemistry , alkyl , computer science , embedded system
The non‐heme iron( III ) complex [(PaPy 3 )Fe(NO 2 )](ClO 4 ) ( 1 ) transfers oxygen in the temperature range 45–65 °C to PPh 3 to afford OPPh 3 in MeCN. The product, [(PaPy 3 )Fe(NO)](ClO 4 ), a {Fe‐NO} 7 species, reverts rapidly back to 1 in the presence of dioxygen, thus making the system catalytic (see scheme). Formation of an oxo‐bridged species terminates the oxo‐transfer process (PaPy 3 H= N ‐[ N , N ‐bis(2‐pyridylmethyl)aminoethyl]‐2‐pyridinecarboxamide).