452281-68-4

Upstream product

• 452281-69-5 [N,N'-bis(2-tosylaminobenzylidene)-1,2-diaminobenzene] 
• 7440-43-9 cadmium 

Relevant academic research and scientific papers

Monohelical complexes of a novel asymmetric N4 Schiff base: Unfamiliar tetrahedral environments of manganese(II) and iron(II) helicates

The electrochemical reaction of the bis-bidentate H2ABATs Schiff base [H2ABATs = N,N′-bis(2-tosylaminobenzylidene)-2-aminobenzylamine] with manganese, iron, cobalt, nickel, copper, zinc and cadmium was investigated. The reaction cell yields products of empirical formula M(ABATs). X-ray diffraction studies show that [Mn(ABATs)]·0.75H2O (1), [Fe(ABATs)]·0.75H2O (2), [Ni(ABATs)]·0.75H2O (3), [Cu(ABATs)]·.0.5H2O(4) and [Zn(ABATs)]·0.75H2O (5) are mononuclear distorted tetrahedral helical complexes in the solid state. Complexes 1 and 2 confirm the ability of this type of ligand to dictate the geometry around the metal centre, as is shown by the unfamiliar tetrahedral environments of manganese(II) and iron(II) ions in complexation with the Schiff bases. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).

Monohelical metal complexes of a bis-bidentate schiff base with a short rigid spacer. The spontaneous resolution of P-[Ni(FTs)]·CH3CN

The electrochemical reaction of the bis-bidentate Schiff base H2FTs [N,N′-bis(2-tosylaminobenzylidene)-1,2-diaminobencene] with cobalt, nickel, copper, zinc and cadmium, lead to the isolation of neutral [M(FTs)] complexes. All of them were characterized by elemental analyses, mass spectrometry, IR and 1H NMR spectroscopy and magnetic measurements, where appropriate. Recrystallization of the nickel complex yields single crystals of [Ni(FTs)]·CH3CN (1). The x-ray characterization shows a distorted square-planar environment for the nickel atom, with the Schiff base acting as a tetradentate N4 donor. Complex 1 can be described as a mononuclear single-stranded helical compound, with spontaneous resolution of the P enantiomer upon crystallisation.