Hydrothermal Synthesis, Crystal Structure of Zinc(II) Complex of bis(2-Benzimidazole) and Aromatic Carboxylate Ligands

摘要

A novel one-dimensional zinc(II) complex: [Zn2L2(H2C3PIm)2]_n (1) with 2-carboxymethylbenzoic acid (H2L) and 2,2'-(1,3- propanediyl)bis(1H-benzimidazole) (H2C3PIm) has been synthesized by means of hydrothermal method and characterized by X-ray single-crystal diffraction. The crystal is of triclinic, space group P-1 with a = 1.3354(5) ran, b = 1.3991(5) nm, c = 1.4245(5) nm,α = 83.617(5)°, β = 70.742(5)°,γ = 70.913(5)°, V = 2.3744(15)nm~3, Dc = 1.451 g cm~(-3), Z = 2, F(000) = 1068,Goof = 1.073, R1 = 0.1067, wR2 = 0.3379. The complex 1 shows a novel one-dimensional (1D) zigzag chain structure along the a axis and further extended into a 2D supramolecular structure through N-H···O hydrogen bonding interactions. The π-π packing interactions contribute to the formation of the three-dimensional supramolecular architecture and stabilize the crystal structure.