Regiospecific Intramolecular O-Demethylation of the Ligand by Action of Molecular Dioxygen on a Ferrous Complex: Versatile Coordination Chemistry of Dioxygen in FeCl<sub>2</sub> Complexes with (2,3-Dimethoxyphenyl) α-Substituted Tripods in the tris(2-Pyridylmethyl)amine Series
Fe(II) center by molecular dioxygen, in the homogeneous phase in non-porphyrinic chemistry. This reaction parallels at the intramolecular level a very important process found in biology leading to the derivatization and elimination of drugs by oxygen-dependent enzymes that contain nonheme iron centers. To get insight into somereactivity aspects of this reaction, we have used dioxygen and iron complexes
The Coordination Chemistry of FeCl3 and FeCl2 to Bis[2-(2,3-dihydroxyphenyl)-6-pyridylmethyl](2-pyridylmethyl)amine: Access to a Diiron(III) Compound with an Unusual Pentagonal-Bipyramidal/Square-Pyramidal Environment
作者:Ahmed Machkour、Nasser K. Thallaj、Laila Benhamou、Mohammed Lachkar、Dominique Mandon
DOI:10.1002/chem.200600276
日期:2006.8.25
discussed. Compound 3 displays an unusual geometry: one iron(III) center is seven-coordinate, whereas the other lies in a square-pyramidal environment. The twoironatoms are bridged by the catecholato substituents. To the best of our knowledge, 3 is the first example of a seven-coordinate iron(III) derivative with tris(2-pyridylmethyl)amine ligands.