基于5-(2-羧基苯基)吡啶-3-甲酸配体的镍(Ⅱ)和锌(Ⅱ)配位聚合物的合成、晶体结构、催化及抗磨性质  

Syntheses,crystal structures,catalytic and anti⁃wear properties of nickel(Ⅱ) and zinc(Ⅱ) coordination polymers based on 5⁃(2⁃carboxyphenyl)nicotinic acid

作　　者：赵正华 张勤 刘玉峰 师自法 顾金忠[2] ZHAO Zhenghua;ZHANG Qin;LIU Yufeng;SHI Zifa;GU Jinzhong(Petrochina Lanzhou Lube Oil R&D Institute,Lanzhou 730000,China;College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)

机构地区：[1]中国石油兰州润滑油研究开发中心,兰州730000 [2]兰州大学化学化工学院,兰州730000

出　　处：《无机化学学报》2024年第3期621-628,共8页Chinese Journal of Inorganic Chemistry

基　　金：甘肃省科技重大专项(No.22ZD6FA006)资助。

摘　　要：采用水热方法,选用5-(2-羧基苯基)吡啶-3-甲酸配体(H_(2)cpna)与1,2-二(4-吡啶基)乙烷(dpea)或1,2-二(4-吡啶基)乙烯(dpey)分别与NiCl_(2)·6H_(2)O和ZnCl_(2)在160℃下反应,合成了2个三维配位聚合物{[Ni(μ3-cpna)(μ-dpea)_(0.5)]·H_(2)O}n (1)和{[Zn(μ_(3)-cpna)(μ-dpey)_(_(0.5))]·H_(2)O}_n (2),并对其结构、催化和摩擦性质进行了研究。研究表明,在室温条件下化合物2在Knoevenagel缩合反应中显示出较好的催化活性。同时,2在聚α-烯烃合成润滑剂中显示出有效的抗磨性能。Two nickel(Ⅱ) and zinc(Ⅱ) coordination polymers,namely{[Ni(μ_(3)-cpna)(μ-dpea)_(0.5)]·H_(2)O}_(n)(1)and{[Zn(μ_(3)-cpna)(μ-dpey)_(0.5)]·H_(2)O}_(n)(2)have been constructed hydrothermally using 5-(2-carboxyphenyl)nicotinic acid(H_(2)cpna),1,2-di(4-pyridyl)ethane(dpea),1,2-di(4-pyridyl)ethylene(dpey),and nickel and zinc chlorides at 160℃.The prod-ucts were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravi-metric analyses,and single-crystal X-ray diffraction analyses.Single-crystal X-ray diffraction analyses revealed that two compounds crystallize in the monoclinic or orthorhombic systems,space groups,P21/c or Pbca.Both compounds show 3D metal-organic frameworks.Compound 2 exhibited an effective catalytic activity in the Knoevenagel conden-sation reaction at room temperature.Meanwhile,compound 2 showed an effective anti-wear performance in poly-α-olefine synthetic lubricant.CCDC:2285135,1;2285136,2.

关 键 词：配位聚合物 二羧酸 催化性质 KNOEVENAGEL缩合反应 摩擦性能 

分 类 号：O614.241[理学—无机化学] O614.813[理学—化学]