Related Experiment Video
Updated: May 10, 2026
Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
Enhancing order and porosity in a highly robust tin(IV) triphosphonate framework
Roger K Mah1, Melanie W Lui, George K H Shimizu
1Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada.
A new metal-organic framework (MOF), CALF-28, demonstrates exceptional porosity and robustness. This highly stable Sn(IV) triphosphonate material overcomes common challenges in porous materials for industrial applications.
Area of Science:
- Materials Science
- Chemistry
- Nanotechnology
Background:
- Metal-organic frameworks (MOFs) are recognized for their crystallinity, stability, and porosity.
- Industrial applications often demand enhanced thermal and moisture stability in porous materials beyond basic pore activation.
- Existing MOF synthesis can be limited by rapid precipitation, compromising crystallinity and structural integrity.
Purpose of the Study:
- To report the development of a highly robust and porous Sn(IV) triphosphonate framework, designated CALF-28.
- To address the need for MOFs with superior thermal and moisture stability for industrial use.
- To elucidate the structure and properties of CALF-28 through advanced analytical techniques.
Main Methods:
- Design of CALF-28 based on a known 2-fold interpenetrated divalent metal phosphonate structure.
- Employing methods to enhance structural order during synthesis.
- Utilizing Powder X-ray Diffraction (PXRD) for structural analysis.
- Conducting gas sorption analysis to determine porosity and surface area.
Main Results:
- CALF-28 exhibits a high surface area exceeding 500 m²/g.
- The synthesized framework demonstrates remarkable stability in water.
- Structural insights were obtained by analogy to a divalent metal analogue and corroborated by experimental data.
Conclusions:
- CALF-28 represents a significant advancement in robust, porous MOF design.
- The material's high surface area and stability in water make it suitable for demanding industrial applications.
- This Sn(IV) triphosphonate framework offers a promising solution for challenges requiring stable porous materials.
More Related Videos
07:14Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
08:00Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
Related Concept Videos
02:42Valence Bond Theory
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...