Abstract
AbstractTwo CoII/CuII coordination polymers, [Co(bim)(ip)]n (1) and [Cu3(nip)2(OH)(bim)(H2O)]n (2) [bim = bis(imidazol‐1‐yl)methane, H2ip = isophthalic acid and H2nip = 5‐nitroisophthalic acid], were synthesized by reactions of metal acetate with H2ip or H2nip in the presence of bim ligand under hydrothermal conditions. The polymers were characterized by elemental analyses, IR spectroscopy, TGA, XRPD, and single‐crystal X‐ray diffraction. Compound 1 shows a 2D (4, 4) layer structure with CoII ions at the nodes, which is further extended in to a 3D supramolecular network through C–H···π interactions. Compound 2 manifests a four‐connected {Cu5(OH)2}8+ pentameric kernel, which is bridged by bim ligand molecules and two kinds of nip ligands with different coordination modes. This complex also displays a 2D (4, 4) network, which is constructed from pentanuclear CuII clusters as secondary building unit (SBU). In addition, the catalytic properties of the title compounds for the degradation of congo red were investigated.
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