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A Thorium Metal-Organic Framework with Outstanding Thermal and Chemical Stability.

08:00 EDT 10th April 2019 | BioPortfolio

Summary of "A Thorium Metal-Organic Framework with Outstanding Thermal and Chemical Stability."

A new thorium metal-organic framework (MOF), Th(OBA)2, where OBA is 4,4'-oxybis(benzoic) acid, has been synthesized hydrothermally in the presence of a range of nitrogen-donor coordination modulators. This Th-MOF, described herein as GWMOF-13, has been characterized via single crystal and powder X-ray diffraction as well as via a range of techniques including gas sorption, thermogravimetric analysis (TGA), and solid-state UV-Vis and luminescence spectroscopy. Single crystal X-ray diffraction analysis of GWMOF-13 reveals an interesting, high symmetry (cubic Ia-3d) structure, which yields a novel srs-a topology. Most notably, TGA analysis of GWMOF-13 reveals framework stability to 525 ºC, matching the thermal stability benchmarks of the UiO-66 series MOFs and ZIFs, and setting a new standard for thermal stability in f-block based MOFs.

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Name: Chemistry (Weinheim an der Bergstrasse, Germany)
ISSN: 1521-3765
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