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Excellent fluorescence properties are exhibited by d metal compounds. The novel three-dimensional Zn coordination framework, poly[[{μ-bis[4-(2-methyl-1H-imidazol-1-yl)phenyl] ether-κN:N}(μ-furan-2,5-dicarboxylato-κO:O)zinc(II)] 1.76-hydrate], {[Zn(CHO)(CHNO)]·1.76HO}, has been prepared and characterized using IR spectroscopy, elemental analysis and single-crystal X-ray diffraction. The crystal structure analysis revealed that the compound exhibits a novel fourfold interpenetrating diamond-like network. This polymer also displays a strong fluorescence emission in the solid state at room temperature.
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http://dx.doi.org/10.1107/S2053229619004303 | DOI Listing |
Chemistry
July 2025
Department of Chemical Sciences, Live Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, Parma, 43124, Italy.
Metal-organic frameworks (MOFs) are a class of coordination polymers known for their intrinsic porosity. This property, combined with their ability to exhibit some degree of flexibility, makes them ideal materials for various innovative applications, like the inclusion and controlled release of active compounds for active packaging and agricultural applications. This study aimed to characterize the uptake and release behavior of an equimolar mixture of two phenolic essential oils (EOs), that is, carvacrol (CAR) and thymol (THY), encapsulated in two microporous Zn-based MOFs with different entanglement motifs: PUM168 is threefold interpenetrated and flexible, while PUM210 is fourfold polycatenated and rigid (PUM = Parma University Materials).
View Article and Find Full Text PDFChemistry
March 2025
Department of Applied Chemistry, National Chi Nan University, Nantou, 545, Taiwan.
Three fluorescent Zn coordaintion polymers (CPs) have been synthesized from the reactions of Zn(NO) ⋅ 6HO, benzene-1,4-dicarboxylic acid (1,4-Hbdc), and angular carbazole-derived bispyridyl ligands (Cz-3,6-bpy or Cz-Pr-3,6-bpy). CPs 1-3 all adopt similar two-dimensional (2D) ring-and-rod layer structures, described as topologically 4-connected 2 ⋅ 6 nets where the Zn(II) centers act as 4-connected nodes. CPs 1 and 2 are a pair of solvent-mediated supramolecular isomers where the former shows a two-fold interlocked 2D →2D polyrotaxane-like entangled net and the latter reveals a four-fold interpenetrated 2D →3D polyrotaxane entanglement.
View Article and Find Full Text PDFChem Sci
February 2025
Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education and Faculty of Chemistry, Northeast Normal University 5268 Renmin Street Changchun 130024 P. R. China
Two-dimensional conductive metal-organic frameworks (2D c-MOFs) with high electrical conductivity and tunable structures hold significant promise for applications in metal-ion batteries. However, the construction of 3D interpenetrated c-MOFs for applications in metal-ion batteries is rarely reported. Herein, a 3D four-fold interpenetrated c-MOF (Cu-DBC) constructed by conjugated and contorted dibenzo[,]chrysene-2,3,6,7,10,11,14,15-octaol (DBC) ligands is explored as an advanced cathode material for sodium-ion batteries (SIBs) for the first time.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
June 2024
State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China.
The development of porous materials with flexible-robust characteristics shows some unique advantages to target high performance for gas separation, but remains a daunting challenge to achieve so far. Herein, we report a carboxyl-based hydrogen-bonded organic framework (ZJU-HOF-8a) with flexible-robust porosity for efficient purification of natural gas. ZJU-HOF-8a features a four-fold interpenetrated structure with dia topology, wherein abundant supramolecular entanglements are formed between the adjacent subnetworks through weak intermolecular hydrogen bonds.
View Article and Find Full Text PDFPolymers (Basel)
March 2024
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 73000, China.
In this work, diamondoid metal-organic frameworks (MOFs) were efficiently prepared by sonochemical synthesis and grown on polyimide (PI), aiming to improve the anti-wear performance of the PI matrix. By introducing MOFs into the PI matrix, the free movement of PI molecular chains were restricted, and its hardness and elastic modulus were improved. It was found that the wear rate of the 3 wt.
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