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Leubner, Sebastian ; Stäglich, Robert ; Franke, Julia ; Jacobsen, Jannick ; Gosch, Jonas ; Siegel, Renée ; Reinsch, Helge ; Maurin, Guillaume ; Senker, Jürgen ; Yot, Pascal G. ; Stock, Norbert:
Solvent Impact on the Properties of Benchmark Metal-Organic Frameworks : Acetonitrile-Based Synthesis of CAU-10, Ce-UiO-66, and Al-MIL-53.
In: Chemistry : a European Journal.
Bd. 26
(2020)
Heft 17
.
- S. 3877-3883.
ISSN 1521-3765
DOI: https://doi.org/10.1002/chem.201905376
Abstract
Herein is reported the utilization of acetonitrile as a new solvent for the synthesis of the three significantly different benchmark metal-organic frameworks (MOFs) CAU-10, Ce-UiO-66, and Al-MIL-53 of idealized composition Al(OH)(ISO)], Ce6O4(OH)(4)(BDC)(6)], and Al(OH)(BDC)], respectively (ISO2-: isophthalate, BDC2-: terephthalate). Its use allowed the synthesis of Ce-UiO-66 on a gram scale. While CAU-10 and Ce-UiO-66 exhibit properties similar to those reported elsewhere for these two materials, the obtained Al-MIL-53 shows no structural flexibility upon adsorption of hydrophilic or hydrophobic guest molecules such as water and xenon and is stabilized in its large-pore form over a broad temperature range (130-450 K). The stabilization of the large-pore form of Al-MIL-53 was attributed to a high percentage of noncoordinating -COOH groups as determined by solid-state NMR spectroscopy. The defective material shows an unusually high water uptake of 310 mg g(-1) within the range of 0.45 to 0.65 p/p degrees. In spite of showing no breathing effect upon water adsorption it exhibits distinct mechanical properties. Thus, mercury intrusion porosimetry studies revealed that the solid can be reversibly forced to breathe by applying moderate pressures (approximate to 60 MPa).
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | ISI:000521630700028 |
| Keywords: | adsorption; metal-organic frameworks; microporous materials; NMR spectroscopy; solvent effects |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Anorganische Chemie III Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Anorganische Chemie III > Lehrstuhl Anorganische Chemie III - Univ.-Prof. Dr. Jürgen Senker Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik 500 Naturwissenschaften und Mathematik > 540 Chemie |
| Eingestellt am: | 28 Mai 2020 07:28 |
| Letzte Änderung: | 07 Feb 2023 10:13 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/55267 |