3-(4-Methylthiophenyl)acetylacetone – ups and downs of flexibility in the synthesis of mixed metal–organic frameworks. Ditopic bridging of hard and soft cations and site-specific desolvation

CrystEngComm ◽  
2020 ◽  
Vol 22 (6) ◽  
pp. 1041-1049 ◽  
Author(s):  
Hans Gildenast ◽  
Stephanie Nölke ◽  
Ulli Englert
Keyword(s):  
Metal Organic Frameworks ◽  
Site Specific ◽  
Mixed Metal ◽  
Metal Organic

Different Pearson-hardness of O and S donors leads to well-ordered mixed metal–organic frameworks.

A direct solvent-free conversion approach to prepare mixed-metal metal–organic frameworks from doped metal oxides

2021 ◽  
Vol 57 (29) ◽  
pp. 3587-3590
Author(s):  
Beili Yi ◽  
Haojie Zhao ◽  
Yue Zhang ◽  
Xiaomeng Si ◽  
Guanqun Zhang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Metal Organic Frameworks ◽  
Solvent Free ◽  
Mixed Metal ◽  
Synthesis Strategy ◽  
Metal Metal ◽  
Metal Organic

We propose a novel solvent-free conversion strategy of Pt–ZnO to Pt-ZIF-8. This synthesis strategy may facilitate the discovery of MMOFs that have not been reported previously.

scholarly journals New insights into solvent-induced structural changes of 13C labelled metal–organic frameworks by solid state NMR

2019 ◽  
Vol 55 (62) ◽  
pp. 9140-9143 ◽  
Author(s):  
Marcus Rauche ◽  
Sebastian Ehrling ◽  
Simon Krause ◽  
Irena Senkovska ◽  
Stefan Kaskel ◽  
...  
Keyword(s):  
Solid State Nmr ◽  
Structural Changes ◽  
Metal Organic Frameworks ◽  
Site Specific ◽  
Isotope Labelling ◽  
Specific Host ◽  
Depth Analysis ◽  
Adsorption Complexes ◽  
Metal Organic ◽  
Labelling Scheme

The proposed 13C isotope-labelling scheme enables the in-depth analysis of site-specific host–guest interactions and adsorption complexes formed in MOFs.

ChemInform Abstract: Functional Mixed Metal-Organic Frameworks with Metalloligands.

ChemInform ◽  
2012 ◽  
Vol 43 (7) ◽  
pp. no-no
Author(s):  
Madhab C. Das ◽  
Shengchang Xiang ◽  
Zhangjing Zhang ◽  
Banglin Chen
Keyword(s):  
Metal Organic Frameworks ◽  
Mixed Metal ◽  
Metal Organic

Mixed-Metal Metal–Organic Frameworks as Catalysts for Liquid-Phase Oxidation of Toluene and Cycloalkanes

2017 ◽  
Vol 42 (10) ◽  
pp. 4383-4390 ◽  
Author(s):  
Abdul Malik P. Peedikakkal ◽  
Abiola Azeez Jimoh ◽  
M. Nasiruzzaman Shaikh ◽  
Bassam El Ali
Keyword(s):  
Liquid Phase ◽  
Metal Organic Frameworks ◽  
Liquid Phase Oxidation ◽  
Mixed Metal ◽  
Metal Metal ◽  
Phase Oxidation ◽  
Metal Organic

scholarly journals Upgrading the Hydrogen Storage of MOF-5 by Post-Synthetic Exchange with Divalent Metal Ions

2021 ◽  
Vol 11 (24) ◽  
pp. 11687
Author(s):  
Abdul Malik P. Peedikakkal ◽  
Isam H. Aljundi
Keyword(s):  
Metal Ions ◽  
Adsorption Isotherms ◽  
Metal Organic Frameworks ◽  
Hydrogen Uptake ◽  
Metal Exchange ◽  
Mixed Metal ◽  
H2 Adsorption ◽  
Hydrogen Molecules ◽  
Metal Metal ◽  
Metal Organic

In metal-organic frameworks (MOFs), mixed-metal clusters have the opportunity to adsorb hydrogen molecules due to a greater charge density of the metal. Such interactions may subsequently enhance the gravimetric uptake of hydrogen. However, only a few papers have explored the ability of mixed-metal MOFs to increase hydrogen uptake. The present work reveals the preparation of mixed metal metal-organic frameworks M-MOF-5 (where M = Ni2+, Co2+, and Fe2+) (where MOF-5 designates MOFs such as Zn2+ and 1,4-benzenedicarboxylic acid ligand) using the post-synthetic exchange (PSE) technique. Powder X-ray diffraction patterns and scanning electron microscopy images indicate the presence of crystalline phases after metal exchange, and the inductively coupled plasma–mass spectroscopy analysis confirmed the exchange of metals by means of the PSE technique. The nitrogen adsorption isotherms established the production of microporous M-MOF-5. Although the additional metal ions decreased the surface area, the exchanged materials displayed unique features in the gravimetric uptake of hydrogen. The parent MOF-5 and the metal exchanged materials (Ni-MOF-5, Co-MOF-5, and Fe-MOF-5) demonstrated hydrogen capacities of 1.46, 1.53, 1.53, and 0.99 wt.%, respectively. The metal-exchanged Ni-MOF-5 and Co-MOF-5 revealed slightly higher H2 uptake in comparison with MOF-5; however, the Fe-MOF-5 showed a decrease in uptake due to partial discrete complex formation (discrete complexes with one or more metal ions) with less crystalline nature. The Sips model was found to be excellent in describing the H2 adsorption isotherms with a correlation coefficient ≅ 1. The unique hydrogen uptakes of Ni− and Co-MOF-5 shown in this study pave the way for further improvement in hydrogen uptake.

Functional Mixed Metal-Organic Frameworks with Metalloligands

2011 ◽  
Vol 50 (45) ◽  
pp. 10510-10520 ◽  
Author(s):  
Madhab C. Das ◽  
Shengchang Xiang ◽  
Zhangjing Zhang ◽  
Banglin Chen
Keyword(s):  
Metal Organic Frameworks ◽  
Mixed Metal ◽  
Metal Organic

Experimental, Structural, and Computational Investigation of Mixed Metal–Organic Frameworks from Regioisomeric Ligands for Porosity Control

2020 ◽  
Vol 20 (8) ◽  
pp. 5338-5345 ◽  
Author(s):  
Dopil Kim ◽  
Hyeonbin Ha ◽  
Youngik Kim ◽  
Younghu Son ◽  
Jiyoon Choi ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Computational Investigation ◽  
Mixed Metal ◽  
Metal Organic
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