Efficient alkene epoxidation catalyzed by molybdenyl acetylacetonate supported on aminated UiO-66 metal - organic framework
Efficient alkene epoxidation catalyzed by molybdenyl acetylacetonate supported on aminated UiO-66 metal - organic framework
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DOI：
10.1016/j.jssc.2014.11.020
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发表时间：
2015-03-01
影响因子：
3.3
通讯作者：
Zadehahmadi, Farnaz
中科院分区：
文献类型：
--
作者：
Kardanpour, Reihaneh;Tangestaninejad, Shahram;Zadehahmadi, Farnaz
通过后合成方法制备了含有Mo席夫碱配合物的金属有机骨架（MOF），并将其用作叔丁醇与烯烃环氧化的有效催化剂。以这种方式，UiO-66-NH2（UiO=奥斯陆大学）MOF与水杨醛和噻吩-2-甲醛反应生成双齿席夫碱。然后，席夫碱配体用于固定乙酰丙酮钼。这些新型催化剂通过 FT-IR、紫外-可见光谱技术、X 射线衍射 (XRD)、BET、电感耦合等离子体原子发射光谱 (ICP-AES) 和场发射扫描电子显微镜 (FE-SEM) 进行了表征。这些催化体系在 1,2-二氯乙烷中用叔丁基过氧化氢 (TBHP) 环氧化烯烃（例如环状和直链烯烃）时表现出优异的活性，并且重复使用多次，其活性没有明显损失。 (C) 2014 Elsevier Inc. 保留所有权利。
Metal-organic frameworks (MOFs) containing Mo Schiff base complexes were prepared by post-synthesis method and applied as efficient catalysts in the epoxidation of alkenes with tert-BuOOH. In this manner, UiO-66-NH2 (UiO=University of Oslo) MOF was reacted with salicylaldehyde and thiophene-2-carbaldehyde to produce bidentate Schiff bases. Then, the Schiff base ligands were used for immobilization of molybdenyl acetylacetonate. These new catalysts were characterized by FT-IR, UV-vis spectroscopic techniques, X-ray diffraction (XRD), BET, inductively coupled plasma atomic emission spectroscopy (ICP-AES) and field emission scanning electron microscopy (FE-SEM). These catalytic systems showed excellent activity in the epoxidation of alkenes such as cyclic and linear ones with tert-butyl hydroperoxide (TBHP) in 1,2-dichloroethane, and reused several times without any appreciable loss of their activity. (C) 2014 Elsevier Inc. All rights reserved.