三个含4,4′-(吡啶-3,5-二基)二苯甲酸配体的锌(Ⅱ)、镍(Ⅱ)和钴(Ⅱ)配位聚合物的合成、晶体结构及催化性质  

Syntheses,crystal structures,and catalytic properties of three zinc(Ⅱ),nickel(Ⅱ)and cobalt(Ⅱ)coordination polymers constructed from 4,4′-(pyridin-3,5-diyl)dibenzoic acid

作　　者：亢秀琪 王嘉浩 顾金忠[1] KANG Xiu-Qi;WANG Jia-Hao;GU Jin-Zhong(College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]兰州大学化学化工学院,兰州730000

出　　处：《无机化学学报》2023年第12期2385-2392,共8页Chinese Journal of Inorganic Chemistry

摘　　要：采用水热方法,选用4,4′-(吡啶-3,5-二基)二苯甲酸配体(H_(2)pdba)与菲咯啉(phen)、2,2′-联吡啶(bipy)或2,2′-联咪唑(H_(2)biim)分别与ZnCl_(2)、NiCl_(2)·6H_(2)O和CoCl_(2)·6H_(2)O在160℃温度下反应,合成了2个二维层状配位聚合物{[Zn(μ3-pdba)(phen)]·H_(2)O}n(1)和{[Ni(μ3-pdba)(bipy)]·3H_(2)O}n(2),以及1个具有一维链结构的配位聚合物{[Co(μ3-pdba)(H_(2)biim)(H_(2)O)]·H_(2)O}n(3),并对其结构和催化性质进行了研究。研究表明,在70℃条件下配合物1在Henry反应中显示出较好的催化活性。优化了反应参数,对反应底物范围也进行了研究。Three zinc(Ⅱ),nickel(Ⅱ),and cobalt(Ⅱ)coordination polymers,namely{[Zn(μ3-pdba)(phen)]·H_(2)O}n(1),{[Ni(μ3-pdba)(bipy)]·3H_(2)O}n(2),and{[Co(μ3-pdba)(H_(2)biim)(H_(2)O)]·H_(2)O}n(3)have been constructed hydrothermally using 4,4′-(pyridin-3,5-diyl)dibenzoic acid(H_(2)pdba),1,10-phenanthroline(phen),2,2′-bipyridine(bipy),2,2′-biimdazole(H_(2)biim),and zinc,nickel 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 reveal that the three compounds crystallize in the monoclinic system,space groups P21/c or P21/n.Compounds 1 and 2 show 2D networks.Compound 3 discloses a 1D ladder chain structure.The catalytic activities in the Henry reaction of these compounds were investigated.Com-pound 1 exhibited an effective catalytic activity in the Henry reaction at 70℃.For this reaction,various parameters were optimized,followed by the investigation of the substrate scope.CCDC:2271015,1;2271016,2;2271017,3.

关 键 词：配位聚合物 二羧酸 催化性质 Henry反应 

分 类 号：O614.24+1[理学—无机化学] O614.81+3[理学—化学] O614.81+2