Synthesis and Photocatalytic sp3 C-H Bond Functionalization of Salen-Ligand-Supported Uranyl(VI) Complexes

Autor:	Jialu He, Xingxing Gong, Yafei Li, Qianyi Zhao, Congqing Zhu
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	photocatalysis uranyl(VI) Salen ligand uranium sp3 C-H bond C-H bond activation Organic chemistry QD241-441
Zdroj:	Molecules, Vol 29, Iss 17, p 4077 (2024)
Druh dokumentu:	article
ISSN:	1420-3049
DOI:	10.3390/molecules29174077
Popis:	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.
Databáze:	Directory of Open Access Journals
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