A series of flexible bis(imidazole)-based coordination polymers tuned by central metal ions and dicarboxylates: Diverse structures and properties

Four Zn/Pb Complexes based on Pyridine containing Mercapto‐triazole Ligand: Syntheses, Structures, and Luminescent Properties

“…It is well known that the Zn II has d 10 configuration and cannot readily accept π‐electron density , . Hence, the red shifts of complexes 1 – 3 could be attributed to the intra‐ligand transition, which is in good agreement with other d 10 coordination compounds . Different from those of complexes 1 and 2 , strong luminescence emission is observed for 3 , the luminescent intensity of 3 is almost threefold larger than that of 2.…”

Synthesis and Characterization of Two Distinct 2D Nickel(II) Coordination Polymers From Dicarboxylate and Flexible Bis(imidazole) Ligands

“…Hence, both complexes, especially complex 2 , demonstrate obvious catalytic behavior to decompose the methyl orange solution. The different catalytic performances may be attributed to distinct coordination environment around the central metal atoms 45. After successive cycles for degradation experiments under the same conditions, the photo‐catalytic activity of residual amount of catalyst ( 1 and 2 ) were slightly decreasing due to leaching of metal ion, however it still can be well considered that the residual catalyst of complexes and the crystals used for powder X‐ray diffraction are homogeneous (Figure S3).…”

Photocatalytic Decontamination of Wastewater Containing Organic Dyes by Metal–Organic Frameworks and their Derivatives

“…[36b]; tpcb = tetrakis(4-pyridyl)cyclobutane; [44] pz = pyrazine; [45] L = 3,4-bi(4-carboxyphenyl)-benzoic acid, bipy = 4,4'-bipyridine; [46] btec = 1,2,4,5-benzenetetracarboxylate, bptc = 3,3',4,4'-benzophenone tetracarboxylic acid; [47,60] [58];L = 3-pyridylnicotinamide, ADTZ = 2,5-(s-acetic acid)dimercapto-1,3,4-thiadiazole; [48,49] en = ethylenediamine, AT = 5,5-azotetrazolate; [50] PTZ = 2-pyridyltetrazolato; [51] tptc = terphenyl-3,3',5,5'-tetracarboxylic acid, bidb = 1,4-bis(1-imidazol-yl)-2,5-dimethyl benzene; [53] 4-bpt = 3,5-bis-(4-pyridyl)-1,2,4-triazole; [25] tipm = tetrakis[4-(1-imidazolyl)phenyl]methane; [55] bpp = 1,3-bis(4-pyridyl)propane; [56,93,100] bdoa = benzene-1,4-dioxyacetica cid, ttbt = 10,11,12,13-tetrahydro-4,5,9,14-tetraaza-benzo[b]triphenylene; [57] bpy = 2,2'-bipyridine,p ytz = 4-(1 H-tetrazol-5-yl)pyridine; [37b, 59] phen = 1,10-phenanthroline; [60,72] cpb = 1,3-(3',4'-carboxylphenoxy)benzene; [61] Ta bH = 4-(trimethylammonio)benzenethiol, bpe = 1,2-bis(4-pyridyl)-ethylene; [62] L = bis-(3,5-dicarboxyphenyl)terephthalamide; [63,73,80] L 2 = N,N'-bis(3-pyridinecarboxamide)-1,3-propane; [65] L = N,N'-bis(pyridine-3-yl)-5-methylisophthalic dicarboxamide, tpd = 2,5-thiophenedicarboxylic acid, mip = 5-methylisophthalic acid, hip = 5-hydroxyisophthalica cid; [66] atrz = 4-amino-1,2,4-triazole; [67] pzca = 2-pyrazine carboxylic acid; [68] TATAB* = 4,4'-[ 6-(dimethylamino)-1,3,5-triazine-2,4-diyl]bis(azanediyl)dibenzoica cid; [69] bmib = 1,3-bis(2-methylimidazol-1-ylmethyl)benzene;…”

“…Notably,t he degradation efficiency of the negatively charged MO (96.2 %) andK R (98.8 %) is far more than that of the positively charged MB (81.7 %) and RhB (57.8 %; Figure 5f). The highly selectivep hotocatalytic activity of the tubular cuprous bromide bulk crystal depends on the chargea nd the molecular weight of the dye, and the structure of the solid material as follows: [43,49,66,86] (i)the anionic dye selective adsorption of cationic Cu I sites of exposed polar faces (0 02) (Figure 5d,e)a nd the oxidation degradationo fa nionic pollutants is realized by the photoinduced hole on the valence bandso wing to the lower spatialm asking of terminal Br;( ii)the effective separation of electron-hole pairs caused by the internal fields of the local dipole moments.…”