化学
热重分析
X射线光电子能谱
钯
催化作用
感应耦合等离子体
粉末衍射
偶联反应
金属有机骨架
卡宾
等离子体原子发射光谱
核化学
结晶学
无机化学
物理化学
有机化学
化学工程
吸附
工程类
物理
等离子体
量子力学
作者
Li-Xin You,Ying Xu,Fan Zhang,Jianhong Hao,Shi-Yu Xie,Gang Xiong,Аndrei S. Potapov,Fu Ding,Yizhen Sun
出处
期刊:Polyhedron
[Elsevier]
日期:2023-09-01
卷期号:242: 116493-116493
标识
DOI:10.1016/j.poly.2023.116493
摘要
A novel 3D Sm-MOF, namely {n[Sm(L)2·2(H2O)]·(Cl)n, H2L+Cl- = 1,3-bis(4-carboxybenzyl)-imidazolium chloride)}, was prepared under hydrothermal conditions and structurally characterized by single-crystal X-ray diffraction. Then the N-heterocyclic carbene-Pd(II) functionalized metal–organic framework (Sm-MOF-Pd) was yielded by introducing Pd active sites into the Sm-MOF by the post-synthesis modification (PSM) method. This new material was characterized by powder X-ray diffraction (PXRD), thermogravimetric analyses (TGA), scanning electron microscopy (SEM), transmission electron (TEM), energy-dispersive X-ray spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP-OES) and X-ray photoelectron spectroscopy (XPS) measurements, showing that Pd(II) ions were uniformly dispersed in the Sm-MOF after PSM. The Sm-MOF-Pd reached a catalytic yield of 99 % in Suzuki-Miyaura cross-coupling reactions under optimal reaction conditions. After four cycles, it still maintained high catalytic activity.
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