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Tuning the Regiospecificity of Cleavage in Fe III Catecholate Complexes: Tridentate Facial versus Meridional Ligands
Author(s) -
Jo DuHwan,
Que, Jr. Lawrence
Publication year - 2000
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 - 10.1002/1521-3773(20001201)39:23<4284::aid-anie4284>3.0.co;2-i
Subject(s) - zonal and meridional , cleavage (geology) , chemistry , stereochemistry , biology , geology , atmospheric sciences , fracture (geology) , paleontology
A facial tridentate ligand is a key feature of iron catecholate complexes that elicit extradiol cleavage of catechols (see picture). The facial geometry allows O 2 and the catecholate dianion to form a tridentate intermediate on the opposite face. Accordingly, complexes of a meridional tridentate ligand do not elicit any extradiol cleavage but instead yield quinone or result in intradiol cleavage.