三个包含四羧酸配体的配位聚合物的合成及其催化性质 |
Syntheses and catalytic performances of three coordination polymers with tetracarboxylate ligands |
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摘要: 利用水热合成方法,选用5-((3,5-二羧基苯基)氨基)苯-1,3-二甲酸配体(H4adip)与菲咯啉(phen)、2,2'-联吡啶(bipy)或双(4-吡啶)胺(bpa),分别与ZnCl2和CoCl2·6H2O在160℃温度下反应,合成了3个三维配位聚合物{[Zn2(μ6-adip)(phen)2]·4H2O}n(1)、{[Co2(μ6-adip)(bipy)2]·4H2O}n(2)和[Co2(μ4-adip)(μ-bpa)2]n(3)。这些配合物为稳定的晶体。通过红外光谱、元素分析、热重分析和单晶X射线衍射分析对其进行了表征。单晶X射线衍射分析表明,3个配合物的晶体属于正交晶系Pnna(1和2)和P21212(3)空间群。配合物1~3都呈三维结构。考察了这些配合物在Henry反应中的催化活性。研究表明,配合物3在70℃下对Henry反应表现出有效的催化活性。同时对反应参数进行了优化,对底物范围也进行了研究。 |
关键词: 配位聚合物 四羧酸 催化性质 Henry反应 |
基金项目: |
Abstract: Three zinc(Ⅱ) and cobalt(Ⅱ) coordination polymers, namely {[Zn2(μ6-adip)(phen)2]·4H2O}n (1), {[Co2(μ6-adip)(bipy)2]·4H2O}n (2), and [Co2(μ4-adip)(μ-bpa)2]n (3) have been constructed hydrothermally using H4adip (H4adip= 5,5'-azanediyldiisophthalic acid), phen (phen=1,10-phenanthroline), bipy (bipy=2,2'-bipyridine), bpa (bpa=bis(4-pyridyl)amine), and zinc and cobalt chlorides at 160 ℃. The products were isolated as stable crystalline solids and were characterized by IR spectra, elemental analyses, thermogravimetric analyses, and single-crystal X-ray diffraction analyses. Single-crystal X-ray diffraction analyses revealed that three compounds crystallize in the orthorhombic system Pnna (1 and 2) or P21212 (3) space groups. All compounds exhibit 3D frameworks. The catalytic perfor-mances in the Henry reaction of these compounds were investigated. Compound 3 exhibited an effective catalytic activity in the Henry reaction at 70 ℃. |
Keywords: coordination polymer tetracarboxylic acid catalytic properties Henry reaction |
投稿时间:2024-03-14 修订日期:2024-06-18 |
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梅震中,王鸿宇,亢秀琪,邵永亮,顾金忠.三个包含四羧酸配体的配位聚合物的合成及其催化性质[J].无机化学学报,2024,40(9):1795-1802. |
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Support information: 相关附件: 20240081_Supporting_Information_R2.doc |
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