Abstract
The synthesis of Mg3(NDC)3(DEF)4 (NDC = 2,6-naphthalenedicarboxylate, DEF = N,N-diethylformamide, 1), the first porous metal-organic framework solid incorporating Mg2+ ions, is reported. Its structure consists of linear Mg3 units linked via NDC bridges to form a three-dimensional framework, featuring one-dimensional channels filled with DEF molecules. Significantly, its framework is fully analogous to that observed within Zn3(NDC)3(CH3OH)2.2DMF.H2O (2), demonstrating that Mg2+ ions can directly substitute for the heavier Zn2+ ions. Compound 1 is readily desolvated by heating at 190 degrees C to give the microporous solid Mg3(NDC)3, exhibiting a BET surface area of 190 m2/g. Adsorption isotherms measured at 77 and 87 K indicate high H2 adsorption enthalpies in the range 7.0-9.5 kJ/mol, depending on the degree of loading. In addition, the material displays selective adsorption of H2 or O2 over N2 or CO, suggesting possible applications in gas separation technologies.
Keywords
ChemistryMicroporous materialAdsorptionIonMoleculeCrystallographySolid solutionMetal-organic frameworkPorosityInorganic chemistryPhysical chemistryOrganic chemistry
Affiliated Institutions
Related Publications
Selective gas adsorption and separation in metal–organic frameworks
Adsorptive separation is very important in industry. Generally, the process uses porous solid materials such as zeolites, activated carbons, or silica gels as adsorbents. With a...
Size-Selective Lewis Acid Catalysis in a Microporous Metal-Organic Framework with Exposed Mn<sup>2+</sup> Coordination Sites
Treatment of selected aldehydes and ketones with cyanotrimethylsilane in the presence of the microporous metal-organic framework Mn3[(Mn4Cl)3BTT8(CH3OH)10]2 (1, H3BTT = 1,3,5-be...
Highly Porous and Stable Metal−Organic Frameworks: Structure Design and Sorption Properties
Gas sorption isotherm measurements performed on the evacuated derivatives of four porous metal−organic frameworks (MOF-n), Zn(BDC)·(DMF)(H2O) (DMF = N,N'-dimethylformamide, BDC ...
Influence of Connectivity and Porosity on Ligand-Based Luminescence in Zinc Metal−Organic Frameworks
Applications of metal-organic frameworks (MOFs) require close correlation between their structure and function. We describe the preparation and characterization of two zinc MOFs...
Evaluating metal–organic frameworks for post-combustion carbon dioxide capture via temperature swing adsorption
Two representative metal-organic frameworks, Zn4O(BTB)2 (BTB3− = 1,3,5-benzenetribenzoate; MOF-177) and Mg2(dobdc) (dobdc4− = 1,4-dioxido-2,5-benzenedicarboxylate; Mg-MOF-74, CP...
Publication Info
- Year
- 2005
- Type
- article
- Volume
- 127
- Issue
- 26
- Pages
- 9376-9377
- Citations
- 730
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
730
OpenAlex
Cite This
Mircea Dincă,
Jeffrey R. Long
(2005).
Strong H<sub>2</sub> Binding and Selective Gas Adsorption within the Microporous Coordination Solid Mg<sub>3</sub>(O<sub>2</sub>C-C<sub>10</sub>H<sub>6</sub>-CO<sub>2</sub>)<sub>3</sub>.
Journal of the American Chemical Society
, 127
(26)
, 9376-9377.
https://doi.org/10.1021/ja0523082
Identifiers
- DOI
- 10.1021/ja0523082