Solvothermal synthesis, crystal structure and magnetic properties of the one-dimensional coordination polymer Ni(DMBDIZ)(OOCMe)₂ (DMBDIZ = 2,6-dimethylbenzo[1,2-d:4,5-d′]diimidazole)

The solvothermal synthesis and crystal structure of the one-dimensional coordination polymer Ni(DMBDIZ) (OOCMe)₂ (DMBDIZ = 2,6-dimethyl-benzo[1,2-d:4,5-d′]diimidazole) are described. Each nickel ion is located in pseudo-octahedral geometry formed by four oxygen atoms from two bidentate acetate anions and two trans-related tertiary nitrogen donors from two different DMBDIZ ligands. The DMBDIZ entity acts as a trans exo-bidentate ligand and bridges the nickel ions to form a uniform linear chain with Ni⋯Ni separation = 8.703 Å. The hydrogen bonding between the acetate anions and the ligands contributes to the enhancement of the structural dimensionality. Variable-temperature magnetic susceptibility measurements (2.0-300 K) reveal the presence of a very weak ferromagnetic interaction between the magnetic centers.