Abstract
The reaction of the potentially tetradentate N4-donor ligand N,N?-bis[(2-aminophenyl)methylidene]ethane-1,2-diamine (H2ane) with various rhenium(V) precursors led to the formation of different rhenium(V) complexes. With trans-[ReOBr3(PPh3)2], the unusual ?3+3' complex cation [Re(tnn)(Htnn)]2+ (H2tnn = N-(2-aminophenylmethylidene)ethane-1,2-diamine) was isolated. With trans-[ReO2(py)4]Cl, the complex [ReO(dne)] was found (H3dne = N1-2-aminobenzyl-N2-2-aminobenzylideneethane-1,2-diamine), and the cationic complex [ReO(ane)]+ was formed from cis-[ReO2I(PPh3)2]. These products were characterized by 1H NMR and IR spectroscopy, and by X-ray diffraction.
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