Photoredox Heterobimetallic Dual Catalysis Using Engineered Covalent Organic Frameworks

The functionalization of an imine-based layered covalent organic framework (COF), containing phenanthroline units as ligands, has allowed the obtention of a heterobimetallated material. Photoactive Ir and Ni fragments were immobilized within the porous structure of the COF, enabling heterogeneous li...

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Bibliographic Details
Published in:ACS catalysis 2021-10, Vol.11 (19), p.12344-12354
Main Authors: López-Magano, Alberto, Ortín-Rubio, Borja, Imaz, Inhar, Maspoch, Daniel, Alemán, José, Mas-Ballesté, Rubén
Format: Article
Language:English
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Summary:The functionalization of an imine-based layered covalent organic framework (COF), containing phenanthroline units as ligands, has allowed the obtention of a heterobimetallated material. Photoactive Ir and Ni fragments were immobilized within the porous structure of the COF, enabling heterogeneous light-mediated Csp3–Csp2 cross-couplings. As radical precursors, potassium benzyl- and alkoxy-trifluoroborates, organic silicates, and proline derivatives were employed, which brings out the good versatility of Ir,Ni@Phen-COF. Moreover, in all the studied cases, an enhanced activity and stability have been observed in comparison with analogous homogenous systems.
ISSN:2155-5435
2155-5435
DOI:10.1021/acscatal.1c03634