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Photoredox Heterobimetallic Dual Catalysis Using Engineered Covalent Organic Frameworks.

ABSTRACT: 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.

SUBMITTER: Lopez-Magano A

PROVIDER: S-EPMC8650013 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Photoredox Heterobimetallic Dual Catalysis Using Engineered Covalent Organic Frameworks.

López-Magano Alberto A Ortín-Rubio Borja B Imaz Inhar I Maspoch Daniel D Alemán José J Mas-Ballesté Rubén R

ACS catalysis 20210921 19

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 Csp<sup>3</sup>-Csp<sup>2</sup> cross-couplings. As radical precursors, potassium benzyl- and alkoxy-trifluoroborates, organic silicates, and proline derivatives were employed, which brin ...[more]

PMID: 34900388

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