两个二苯醚四羧酸-钴(Ⅱ)配位聚合物的合成、结构和催化性质  

Synthesis,Structures and Catalytic Activity in Knoevenagel Condensation Reaction of Two Diphenyl Ether Tetracarboxylic Acid⁃Co(Ⅱ) Coordination Polymers

作　　者：赵素琴[1] 顾金忠[2] ZHAO Su-Qin;GU Jin-Zhong(College of Physics and Electronic Information Engineering,Qinghai University for Nationalities,Xining 810007,China;College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]青海民族大学物理与电子信息工程学院,西宁810007 [2]兰州大学化学化工学院,兰州730000

出　　处：《无机化学学报》2022年第1期161-170,共10页Chinese Journal of Inorganic Chemistry

基　　金：青海省应用基础研究项目(No.2020⁃ZJ⁃705)资助。

摘　　要：采用水热方法,选用2,3,3',4'⁃二苯醚四羧酸(H_(4)deta)和2,2'⁃联咪唑(H_(2)biim)、菲咯啉(phen)分别与CoCl_(2)·6H_(2)O在160℃下反应,得到了具有一维链结构([Co_(2)(μ_(3)⁃deta)(H_(2)biim)_(3)(H_(2)O)_(2)]_(n),1)和二维网络结构({[Co_(2)(μ_(6)⁃deta)(phen)_(2)]·H_(2)O}_(n),2)的配位聚合物,并对其结构和催化性质进行了研究。研究表明,在室温下配合物1在Knoevenagel缩合反应中显示出很好的催化活性。Two cobalt(Ⅱ)coordination polymers,namely[Co_(2)(μ_(3)⁃deta)(H_(2)biim)_(3)(H_(2)O)_(2)]_(n)(1)and{[Co_(2)((μ_(6)⁃deta)(phen)_(2)]·H_(2)O}_(n)(2),have been constructed hydrothermally using H_(4)deta(_(2),3,3',4'⁃diphenyl ether tetracarboxylic acid),H_(2)biim(2,2'⁃biimidazole),phen(1,10⁃phenanthroline),and cobalt chloride 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 compounds 1 and 2 crystallize in the triclinic and monoclinic systems,space groups P1 and P21/c,respectively.Compound 1 discloses a 1D chain structure,and compound 2 features a 2D network.The catalytic activities in Knoevenagel condensation reaction of the compounds were investigated.Compound 1 exhibited excellent catalytic activity in Knoevenagel con⁃densation reaction at room temperature.CCDC:2069400,1;2069401,2.

关 键 词：配位聚合物 四羧酸 催化性质 KNOEVENAGEL缩合反应 

分 类 号：O614.812[理学—无机化学]