COPPER-DIOXYGEN REACTIVITY INVOLVED IN THE FORMATION OF MU-OXO [(POR)FE-III-O-CU(III)L](+) HETERODINUCLEAR COMPLEXES (POR=PORPHYRINATE, L=TETRADENTATE LIGAND), AND NOVEL SYNTHESIS OF SQUARE-PLANAR FE-II(POR) SPECIES
In the reaction of Fe-II(por) species with [LCu(I)(MeCN)](+) and O-2 to give mu-oxo [(por)Fe-III-O-Cu(II)L](+) 3 (per = porphyrinate, L = tetradentate ligand), copper-dioxygen adducts or their decomposition products must be present, otherwise [(por)Fe-III-OH] or [(por)Fe-III-O-Fe-III(por)] products appear; a novel synthesis of square-planar Fe-II(por) is also described.