Citation: Wen WANG, Ying XU, Gang XIONG, Lixin YOU, Yaguang SUN. Pd-NHC-functionalized La-metal-organic framework for efficient Suzuki-Miyaura cross-coupling reaction[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(7): 1475-1484. doi: 10.11862/CJIC.20260025 shu

Pd-NHC-functionalized La-metal-organic framework for efficient Suzuki-Miyaura cross-coupling reaction

College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China

Corresponding author: Lixin YOU, youlx@syuct.edu.cn
Received Date: 26 January 2026
Revised Date: 11 May 2026

Figures(14)

A 3D lanthanum-based metal-organic framework, {[La(L)₂]Cl·CH₃CN}_n (La-MOF), was synthesized using 1, 3-bis(4-carboxybenzyl)-4-methylimidazolium chloride ((H₂L)Cl) as the ligand. The heterogeneous catalyst Pd-NHC@La-MOF (1) was subsequently prepared via post-synthetic modification, wherein active palladium-N-heterocyclic carbene (Pd-NHC) sites were immobilized through the reaction of La-MOF with Pd(OAc)₂. Comprehensive characterization (powder X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and thermogravimetric analysis) confirmed that the material retained high crystallinity, uniform Pd-NHC dispersion, and remarkable thermal stability. Catalyst 1 exhibited excellent performance in the Suzuki-Miyaura cross-coupling reaction of bromobenzene and phenylboronic acid under mild conditions, achieving a yield of over 99%. Furthermore, the catalyst demonstrated broad substrate adaptability. Notably, it maintained a yield of over 88% over three consecutive cycles without significant structural degradation.
- metal-organic framework,
- Suzuki-Miyaura cross-coupling reaction,
- palladium-nitrogen heterocyclic carbene,
- heterogeneous catalysis
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