Two novel 3D 3d–4f polymers with triethylenetetraaminehexaacetic acid: Syntheses, structures, and magnetic properties

Two novel 3d–4f polymers [La(H2O)4][M2TTHA(SCN)2] · H3O+ (M = Ni(1), Cu(2), H6 TTHA = triethylenetetraaminehexaacetic acid) were synthesized and characterized by X-ray single-crystal diffraction, elemental analysis, IR and magnetic properties. Two complexes show 3D framework, comprising an unusual infinite 1D chain based on heterometallic La2M2 rings (M = Ni(1), Cu(2)).

Two novel 3d–4f polymers [La(H2O)4][M2TTHA(SCN)2] · H3O+ (M = Ni(1), Cu(2), H6 TTHA = triethylenetetraaminehexaacetic acid) were synthesized and characterized by X-ray single-crystal diffraction and magnetic properties, which show 3D framework, comprising an unusual infinite 1D chain based on heterometallic La2M2 rings (M = Ni(1), Cu(2)). The 3D topology of complex 1. Thick lines: carboxyl bridges; dashed lines: –NCCN-bridges; green: La; blue: Ni.Figure optionsDownload as PowerPoint slide