Structural Diversity Observed in Two-dimensional Square Lattice Metal–Organic Frameworks Assembled from Zn(II) and 3-(4-Pyridyl)benzoate
| Autor: | N T Christelle Dzesse, Gift Mehlana, Susan A. Bourne, Chad Wilkinson, Gaëlle Ramon |
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| Rok vydání: | 2017 |
| Předmět: |
Denticity
010405 organic chemistry Inorganic chemistry General Chemistry Crystal structure 010402 general chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences Metal Solvent Tetragonal crystal system chemistry.chemical_compound Crystallography chemistry visual_art visual_art.visual_art_medium Moiety General Materials Science Metal-organic framework Carboxylate |
| Zdroj: | Crystal Growth & Design. 17:6445-6454 |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/acs.cgd.7b01101 |
| Popis: | The reaction of 3-(4-pyridyl)benzoate (34pbz) under solvothermal and solvent evaporation conditions produced several two-dimensional (2D) square lattice metal–organic frameworks compounds, {[Zn(34pbz)2]·DMF}n (1), {[Zn(34pbz)2]·DMF}n (2), and {[Zn(34pbz)2]·2DMF·CH3OH·1/2H2O}n (3). Although the frameworks of 1, 2, and 3 have identical elemental composition, these networks differ in the binding mode of the carboxylate moiety to the metal center. In compound 1 the carboxylate moiety assumes a monodentate binding mode, while in 2 and 3 it assumes a chelating binding mode. Compounds 1 and 3 crystallize in space group P21/c with different unit cell parameters, while compound 2 crystallizes in the tetragonal crystal system. In all three crystal structures, networks are formed by connecting mononuclear Zn(II) units with 34pbz linkers forming a square grid network. The solvent accessible void volumes in 1 (21%) and 2 (18%) are comparable, while compound 3 has a void volume of 42%, which is extremely large for a 2D... |
| Databáze: | OpenAIRE |
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