Zn-URJC-12 Material Constituted of Two Different Organic Ligands for CO2 Valorization into Cyclic Carbonates
Jesús Tapiador, Pedro Leo, Pablo Salcedo-Abraira, Antonio Rodríguez-Diéguez, Gisela Orcajo
TL;DR
A new zinc-based material called Zn-URJC-12 efficiently converts CO2 and epoxides into cyclic carbonates with high yields and stability.
Contribution
Zn-URJC-12 is a novel metal-organic framework first applied for CO2 valorization into cyclic carbonates.
Findings
Zn-URJC-12 achieves 100% yield for propylene oxide and 76% for allyl glycidyl ether in CO2 cycloaddition.
The material remains stable in polar solvents and retains catalytic performance over five cycles.
Single-crystal X-ray diffraction confirms the framework's structure with coordinated –NH2 groups.
Abstract
A novel metal–organic framework based on zinc ions, designated as Zn-URJC-12, has been synthesized and applied for the first time in the cycloaddition reaction between carbon dioxide and epoxides. This MOF is constructed from two different organic linkers: 5-aminoisophthalic acid and 4,4′-biphenyldicarboxylic acid. The framework features –NH2 functional groups coordinated to Zn(II) centers, as confirmed by single-crystal X-ray diffraction analysis. Zn-URJC-12 demonstrates exceptional chemical stability in polar organic solvents, such as methanol, while maintaining thermal stability up to 250 °C. The material exhibits high catalytic efficiency in the cycloaddition of CO2 with epoxides, achieving yields of 100% and 76% for propylene oxide and allyl glycidyl ether, respectively. Additionally, Zn-URJC-12 maintains its structural integrity and catalytic performance during five successive…
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Taxonomy
TopicsCarbon dioxide utilization in catalysis · Metal-Organic Frameworks: Synthesis and Applications · Chemical Synthesis and Reactions