title: Synthesis, crystal structures, luminescence and catalytic properties of two d¹⁰ metal coordination polymers constructed from mixed ligands.
abstract: Two new coordination polymers [Cd(bmb)(hmph)]n (1), {[Ag(bmb)]·H2btc}n (2) (bmb=1,4-bis(2-methylbenzimidazol-1-ylmethyl)benzene, H2hmph=homophthalic acid, H3btc=1,3,5-benzenetetracarboxylic acid) were synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction methods, IR spectroscopy, TGA, XRPD and elemental analysis. Complex 1 features a 3D threefold interpenetrating dia array with a 4-connected 6(6) topology. Complex 2 shows a 1D helix chain structure connected by L1 ligands, which is finally extended into a rarely 2D 4L2 supramolecular network via C-H⋯O hydrogen bond interactions. In addition, the luminescence and catalytic properties of the two complexes for the degradation of the methyl orange azo dye in a Fenton-like process were presented. The degradation efficiency of the methyl orange azo dye for 1 and 2 are 56% and 96%, respectively.
authors.affiliation: College of Chemical Engineering, Hebei United University, 46 West Xinhua Road, Tangshan 063009, Hebei, PR China.
authors.forename: Xiao-xiao
authors.initials: XX
authors.lastname: Wang
authors.affiliation: College of Chemical Engineering, Hebei United University, 46 West Xinhua Road, Tangshan 063009, Hebei, PR China.
authors.forename: Ming-xi
authors.initials: MX
authors.lastname: Zhang
authors.affiliation: Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium.
authors.forename: Baoyi
authors.initials: B
authors.lastname: Yu
authors.affiliation: Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 S3, B-9000 Ghent, Belgium.
authors.forename: Kristof
authors.initials: K
authors.lastname: Van Hecke
authors.affiliation: College of Chemical Engineering, Hebei United University, 46 West Xinhua Road, Tangshan 063009, Hebei, PR China. Electronic address: tscghua@126.com.
authors.forename: Guang-hua
authors.initials: GH
authors.lastname: Cui
mesh_terms: D001391:Azo Compounds / Q000737:chemistry; D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008024:Ligands; D049449:Luminescence; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D011208:Powders; D013050:Spectrometry, Fluorescence; D013055:Spectrophotometry, Infrared; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D001391:Azo Compounds; D056831:Coordination Complexes; D008024:Ligands; D008670:Metals; D011108:Polymers; D011208:Powders; C100258:methyl orange
keywords: Bis(benzimidazole) ligand; Crystal structure; Luminescence; Metal–organic framework