He J, Gong X, Li Y, Zhao Q, Zhu C. Synthesis and Photocatalytic sp
3 C-H Bond Functionalization of Salen-Ligand-Supported Uranyl(VI) Complexes.
Molecules 2024;
29:4077. [PMID:
39274925 PMCID:
PMC11397425 DOI:
10.3390/molecules29174077]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/06/2024] [Accepted: 08/27/2024] [Indexed: 09/16/2024] Open
Abstract
Recent years have seen increasing interest in uranyl(VI) photocatalysis. In this study, uranyl complexes were successfully synthesized from ligands L1-L6 and UO2(NO3)2·6H2O under reflux conditions, yielding products 1-6 with yields ranging from 30% to 50%. The complexes were thoroughly characterized using NMR spectroscopy, single-crystal X-ray diffraction, and elemental analysis. The results indicate that complexes 1-5 possess a pentagonal bipyramidal geometry, whereas complex 6 exhibits an octahedral structure. The photocatalytic properties of these novel complexes for sp3 C-H bond functionalization were explored. The results demonstrate that complex 4 functions as an efficient photocatalyst for converting C-H bonds to C-C bonds via hydrogen atom transfer under blue light irradiation.
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