Abstract
Two new compounds [Ni(dca)2(dmdpy)] (1) and [Zn(dca)2(dmdpy)] (2), (dca=dicyanamide and dmdpy=5,5′-dimethyl-2,2′-dipyridine) were synthesized and characterized by single crystal X-ray diffraction, FTIR and thermal analysis. In both compounds, the dmdpy ligand adopts a bidentate chelating coordination mode while dca anions act in a μ1,5 bridging fashion. In 1, the NiII centers lie on a distorted octahedral geometry, whereas in 2 the ZnII geometry is distorted square pyramidal. In compounds 1 and 2, dca ligands connect the metal sites giving rise to 2D and 1D coordination polymers, respectively. The magnetic properties of 1 were studied by magnetic susceptibility and high field/frequency electron paramagnetic resonance (HFEPR) measurements.
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