Journal
ACS CATALYSIS
Volume 11, Issue 19, Pages 12344-12354Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.1c03634
Keywords
covalent organic frameworks; photocatalysis; dual catalysis; C-C bond formation; heterogeneous catalysis
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Funding
- European Research Council (ERC-CoG) [647550]
- Spanish Government [RTI2018-095038-B-I00, PID2019-110637RBI00]
- Comunidad de Madrid
- European Structural Funds [S2018/NMT-4367]
- UAM for FPIUAM predoctoral fellowship
- Spanish MINECO [SEV-2017-0706]
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The functionalization of an imine-based layered covalent organic framework has allowed the obtention of a heterobimetallated material with photoactive Ir and Ni fragments immobilized within the porous structure. These heterogeneous light-mediated reactions showed enhanced activity and stability compared to analogous homogeneous systems.
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(3)-Csp(2) 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.
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