Abstract
The reactions of the potentially tridentate Schiff bases 2-[(2-hydroxyphenyl)iminomethyl]phenol (H 2ono) and 2-(2-aminobenzylideneimino)phenol (H 3onn) with trans-[ReOBr 3(PPh 3) 2] were studied, and the complexes [Re IIIBr(PPh 3) 2(ono)] ( 1) and [Re VBr(PPh 3) 2(onn)]Br ( 2) were isolated. In 1 ono acts as a dianionic tridentate ligand, and in 2 onn is coordinated as a tridentate trianionic imido-imino-phenolate. The complex [Re I(CO) 3(ons)(Hno)] was isolated from the reaction of [Re(CO) 5Br] with 2-[(2-methylthio)benzylideneimino]phenol (Hons; Hno = 2-aminophenol), with ons coordinated as a bidentate chelate with a free SCH 3 group. These complexes were characterized by X-ray crystallography, NMR and IR spectroscopy.
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