Metal-organic frameworks based on amino-pyrazole ligands for CO2 adsorption and utilization

• Applicant: Ganna Senchyk, Ph.D.
• Subject Area: Inorganic Molecular Chemistry - Synthesis and Characterisation ; Synthesis and Properties of Functional Materials
• Term: since 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 544254353

Solving global environmental problems concerning the significant carbon dioxide (CO2) emissions into the atmosphere demands the development of new materials for sorption, separation, and storage of CO2. Metal-organic frameworks (MOFs) have attracted much attention as potential next-generation adsorbents. They not only possess a high porosity and surface area, but also this surface can be easily tuned and decorated according to the application demands. Thus, the presented project is aimed to elaborate porous MOFs based on amino pyrazole ligands, define their crystal structure and study physical properties toward carbon dioxide capture and utilization. Azolate heterocycles with two N1,N2-donor atoms show an ability to sustain short bridges between metal centres that are beneficial for formation of polynuclear cluster motifs as secondary building units of the coordination framework. Amino-pyrazole functionalized ligands are expected to lead to evident advantages like higher stability and robustness of the resulting framework as well as to presence of additional amino groups for better attraction of the substrate and increasing its uptake. Invention of a novel, much easier one-step pathway directly to amino pyrazole derivatives opens an access to a broad library of organic ligands including heterofunctional species.

• DFG Programme: WBP Position