Lanthanide-based MOFs derived from 1,3-bis(diphenylphosphoryl)-2-oxapropane
Serafima S Slobodskaia1, Galina S Tsebrikova1, Andrey B Ilyukhin2
1Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow 119071, Russia. SlobodskayaSi@yandex.ru.
Researchers synthesized lanthanide metal-organic frameworks (MOFs) using a novel ligand. The study reveals how lanthanide ion size influences MOF structure and explores their CO2 adsorption capabilities.
Area of Science:
- Coordination Chemistry
- Materials Science
- Inorganic Chemistry
Background:
- Neutral phosphoryl podands are known for cation complexation.
- Ethylene glycol chains and diphenylphosphorylmethyl end groups contribute to these properties.
Purpose of the Study:
- Synthesize 2D and 3D lanthanide metal-organic frameworks (MOFs) using 1,3-bis(diphenylphosphoryl)-2-oxapropane (L).
- Investigate the influence of lanthanide (Ln3+) position on MOF structure.
- Evaluate the CO2 adsorption properties of the synthesized MOFs.
Main Methods:
- X-ray diffraction
- Infrared (IR) spectroscopy
- Thermogravimetric analysis (TGA)
Main Results:
- Ce3+ and Pr3+ formed 2D MOFs, while Sm3+, Eu3+, and Nd3+ formed both 2D and 3D MOFs.
- Heavy lanthanide ions with smaller radii predominantly formed 3D MOFs.
- Specific surface areas for Tm3+ and Pr3+ MOFs were 120 m2 g-1 and 13 m2 g-1, respectively.
Conclusions:
- Established correlations between MOF structure and synthesis conditions.
- Demonstrated tunable MOF dimensionality based on lanthanide ion size.
- Highlighted potential applications in CO2 adsorption.
More Related Videos
07:14Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
07:20Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
