ZnII and CuII-Based Coordination Polymers and Metal Organic Frameworks by the of Use of 2-Pyridyl Oximes and 1,3,5-Benzenetricarboxylic Acid
| Autor: | Júlia Mayans, Patrick McArdle, Constantina Papatriantafyllopoulou, Ioannis Mylonas-Margaritis |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Polymers
Pyridines Metal ions in aqueous solution metal-organic frameworks (MOFs) Pharmaceutical Science Infrared spectroscopy carboxylates Ligands Article Analytical Chemistry law.invention lcsh:QD241-441 chemistry.chemical_compound lcsh:Organic chemistry Coordination Complexes law Oximes Àcids carboxílics Drug Discovery Reactivity (chemistry) Physical and Theoretical Chemistry Electron paramagnetic resonance Metal-Organic Frameworks Coure Carboxylic acids Ligand Organic Chemistry zinc Tricarboxylic Acids Resonance (chemistry) Oxime Zinc Crystallography coordination polymers chemistry Chemistry (miscellaneous) copper Molecular Medicine Metal-organic framework pyridyl oximes Copper |
| Zdroj: | Molecules, Vol 26, Iss 491, p 491 (2021) Molecules Volume 26 Issue 2 Dipòsit Digital de la UB Universidad de Barcelona |
| ISSN: | 1420-3049 |
| Popis: | The simultaneous use of 2-pyridyl oximes (pyridine-2 amidoxime, H2pyaox 2-methyl pyridyl ketoxime, Hmpko) and 1,3,5-benzenetricarboxylic acid (H3btc) provided access to five new compounds, namely [Zn(H2btc)2(H2pyaox)2]2H2O (12H2O), [Zn(Hbtc)(H2pyaox)2]n (2), [Cu(Hbtc)(H2pyaox)]n (3), [Cu(Hbtc)(HmpKo)]n (4) and [Cu2(Hbtc)2(Hmpko)2(H2O)2]4H2O (54H2O). Among them, 3 is the first example of a metal-organic framework (MOF) containing H2pyaox. Its framework can be described as a 3-c uninodal net of hcb topology with the layers being parallel to the (1,0,1) plane. Furthermore, 3 is the third reported MOF based on a 2-pyridyl oxime in general. 2 and 4 are new members of a small family of coordination polymers containing an oximic ligand. 1&ndash 5 form 3D networks through strong intermolecular interactions. Dc magnetic susceptibility studies were carried out in a crystalline sample of 3 and revealed the presence of weak exchange interactions between the metal centres the experimental data were fitted to a theoretical model with the fitting parameters being J = &minus 0.16(1) cm&minus 1 and g = 2.085(1). The isotropic g value was also confirmed by electronic paramagnetic resonance (EPR) spectroscopy. Reactivity studies were performed for 3 in the presence of metal ions the reaction progress was studied and discussed for Fe(NO3)3 by the use of several characterization techniques, including single crystal x-ray crystallography and IR spectroscopy. |
| Databáze: | OpenAIRE |
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