Synthesis and Structure of Three New Alkaline Earth Metal-Organic Frameworks with High Thermal Stability as Catalysts for Knoevenagel Condensation

被引：33

作者：

Asgharnejad, Leila ^{[1
]}

Abbasi, Alireza ^{[2
]}

Najafi, Mahnaz ^{[2
]}

Janczak, Jan ^{[3
]}

机构：

[1] Univ Tehran, Sch Chem, Alborz Campus, Tehran, Iran

[2] Univ Tehran, Coll Sci, Sch Chem, POB 14155-6455, Tehran, Iran

[3] Polish Acad Sci, Inst Low Temp & Struct Res, POB 1410, PL-50950 Wroclaw, Poland

来源：

CRYSTAL GROWTH & DESIGN | 2019年 / 19卷 / 05期

关键词：

HETEROGENEOUS CATALYSIS; MOFS; ADSORPTION; SEPARATION; CALCIUM; CO2; CA;

D O I：

10.1021/acs.cgd.8b01810

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three new alkaline earth metal-organic frameworks (MOFs), [Mg-2(BDC-OH)(2)(DMF)(3)] (Mg-HBDC), [Ca(BDC-OH)(DMF)(2)] (Ca-HBDC), and [Sr(BDC-OH)(DMF)] (Sr-HBDC) (BDC-OH = 2-hydroxyterephthalate(2-) anion and DMF = N,N-dimethylformamide), were synthesized by the assembly of BDC-OH and nitrate salts of the metal ions under solvothermal conditions. Single-crystal structure analysis revealed that Ca-HBDC and Sr-HBDC are isostructural to their corresponding MOFs containing 2,5-dihydroxyterephthalalate(2-) anion (H(2)dhtp) and terephthalate(2-) anion (BDC), respectively. The MOFs were also characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. The obtained MOFs were applied as heterogeneous basic catalysts for the Knoevenagel condensation reaction at room temperature. The catalysts showed good catalytic activity and structural stability in the condensation reaction and could be reused without observable loss of activity.

引用

页码：2679 / 2686

页数：8

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