Synthesis and structure of two novel cobalt(II) and zinc(II) crystalline coordination networks constructed with 1,3,5-benzene tricarboxylate and 9,10-bis(imidazol-1-ylmethyl)anthracene

Two new cobalt(II) and zinc(II) coordination networks constructed from an anthracene based bis imidazole ligand, 9,10-bis(imidazol-1-ylmethyl)anthracene ligand (L), are reported. The compounds {[Co (HBTC2−) (L) (H2O)2]·H2O}∞(1) and {[Zn (HBTC2−) (L) (H2O)2]·H2O}∞(2) were synthesized under solvothermal conditions and structurally characterized by single X-ray diffraction analysis and thermogravimetric analysis. Both 1 and 2 have a one-dimensional covalently bonded (1D) zigzag chain structure that is linked into infinite two-dimensional (2D) sheets by inter-chain π···π stacking and hydrogen bonding.