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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Duren, Tina
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2019Triphasic Nature of Polymers of Intrinsic Microporosity Induces Storage and Catalysis Effects in Hydrogen and Oxygen Reactivity at Electrode Surfacescitations
- 2018Tuning the Mechanical Response of Metal−Organic Frameworks by Defect Engineeringcitations
- 2015Metal-organic frameworks from divalent metals and 1,4-benzenedicarboxylate with bidentate pyridine-N-oxide co-ligandscitations
- 2014Polymorphism of metal-organic frameworkscitations
- 2014Stabilization of scandium terephthalate MOFs against reversible amorphization and structural phase transition by guest uptake at extreme pressurecitations
- 2013Elucidating the breathing of the metal-organic framework MIL-53(Sc) with ab initio molecular dynamics simulations and in situ X-ray Powder Diffraction Experimentscitations
- 2006Synthesis of MIL-102, a chromium carboxylate metal-organic framework, with gas sorption analysiscitations
- 2005Adsorption fundamentals in metal-organic frameworks from molecular modeling
- 2004Molecular modelling of adsorption in novel nanoporous metal-organic materialscitations
- 2004Assessment of isoreticular metal-organic frameworks for adsorption separationscitations
- 2001Molecular modeling of adsorption in carbon nanotubes
Places of action
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article
Metal-organic frameworks from divalent metals and 1,4-benzenedicarboxylate with bidentate pyridine-N-oxide co-ligands
Abstract
<p>Two Co<sup>2+</sup> metal-organic framework materials, constructed from a combination of 1,4-benzenedicarboxylate (BDC) and either 2,2′-dipyridyl-N-oxide (DPNO) or 2,2′-dipyridyl-N,N′-dioxide (DPNDO), are synthesized under solvothermal reaction conditions, and their structures solved by single crystal X-ray diffraction. Both have three-dimensional structures that contain octahedral Co<sup>2+</sup> centers with μ<sub>2</sub>-(η<sup>2</sup>)-BDC, and bidentate DPNO or DPNDO coligands that bridge pairs of metal centers but do not contribute toward the overall connectivity of the framework. Co<sub>3</sub>(BDC)<sub>3</sub>(DPNO)<sub>2</sub> contains trimers of trans corner-shared Co-centered octahedra with one type of bridging BDC ligand forming terminal edges of the trimers, bridging to neighboring trimer units, and a second type, bridging pairs of metals and also connecting neighboring trimers. Co<sub>2</sub>(BDC)<sub>2</sub>(DPNDO) is constructed from one-dimensional inorganic chains consisting of cis- and trans-corner shared Co<sup>2+</sup>-centered octahedra. The DPNDO ligand is bis-bidentate, forming the edges of one type of octahedron and the trans corners of the second type, with the coordination for both octahedra completed by bridging BDC linkers, which in turn connect the inorganic chains to yield a three-dimensional structure. Thermogravimetric analysis shows both materials contain trapped solvent, and while Co<sub>3</sub>(BDC)<sub>3</sub>(DPNO)<sub>2</sub> is unstable with respect to solvent loss, Co<sub>2</sub>(BDC)<sub>2</sub>(DPNDO), and its magnesium analogue, can be desolvated to yield permanently porous materials that show thermal stability up to 300 °C. For Co<sub>2</sub>(BDC)<sub>2</sub>(DPNDO), gas adsorption studies show permanent microporosity with moderate uptake of small gas molecules (N<sub>2</sub>, CO<sub>2</sub>, CH<sub>4</sub>, and C<sub>2</sub>H<sub>6</sub>), supported by Grand Canonical Monte Carlo calculations based on the assumption of rigid crystal structures, while gravimetric analysis shows rapid and reversible methanol adsorption at ambient pressure for both the Co and Mg analogues of the framework.</p>