基于柔性苯二乙酸Co/Ni配位聚合物的构筑和电化学性能研究  

Construction and Electrochemical Properties of Co/Ni Coordination Polymer Based on Flexible Phenyldiacetate

作　　者：林涛海 张军 葛庆 张钢强 张美丽[3] LIN Taohai;ZHANG Jun;GE Qing;ZHANG Gangqiang;ZHANG Meili(Xinjiang Shinning Environmental Protection Energy Co.,Ltd.,Hami 963000,China;College of Chemical Engineering,Xinjiang University,Urumqi 830017,China;College of Chemistry and Chemical Engineering,Yan’an University,Yan’an 716000,China)

机构地区：[1]新疆宣力环保能源股份有限公司,哈密963000 [2]新疆大学化工学院,乌鲁木齐830017 [3]延安大学化学与化工学院,延安716000

出　　处：《人工晶体学报》2024年第3期534-540,共7页Journal of Synthetic Crystals

基　　金：新疆维吾尔自治区重大科技专项(2021A01002-3);陕西省科技厅资助项目(2022JM-095);榆林市科技局资助项目(CXY-2021-126)。

摘　　要：基于柔性苯二乙酸水热合成2个配位聚合物([Co(tib)(mpda)(H_(2)O)_(2)]·H_(2)O,[Ni(tib)(mpda)(H_(2)O)_(2)]·H_(2)O)(tib=均苯三咪唑,mpda=间苯二乙酸),利用元素分析、红外光谱、热重分析和X射线单晶衍射等进行表征。在[Co(tib)(mpda)(H_(2)O)_(2)]·H_(2)O的结构中,tib配体作为三节点与Co(II)离子配位形成2D网格面;顺式mpda以端基式附着在2D网格面上;再通过mpda的未配位羧基O与配位水分子之间O—H…O相互作用(O1…O3键长为0.2624 nm,∠O5—H5A…O2=155.41°)形成三维超分子网络结构。2个配位聚合物属于异质同晶,晶体结构基本一致。2个配位聚合物的比表面积分别为54和58 m^(2)/g,且[Ni(tib)(mpda)(H_(2)O)_(2)]·H_(2)O具有完整的循环伏安曲线(还原、氧化电位分别为0.205、0.563 V)和良好的扫描速率。Two coordination polymers([Co(tib)(mpda)(H_(2)O)_(2)]·H_(2)O,[Ni(tib)(mpda)(H_(2)O)_(2)]·H_(2)O)were synthesized based on flexible phenyldiacetic acid,and characterized by elemental analysis,infrared spectroscopy,thermogravimetric analysis and X-ray single crystal diffraction.In the structure of[Ni(tib)(mpda)(H_(2)O)_(2)]·H_(2)O,the tib ligands coordinate as three nodes with Co(II)ions to form a 2D grid plane;cis-mpda ligands are attached to the 2D grid face as end-bases;through the O—H…O interaction between the mpda virgin carboxyl O and the coordinated water molecule(bond length of O1…O3 is 0.2624 nm,∠O5—H5A…O2=155.41°),a three-dimensional supramolecular network structure is formed.Two coordination polymers belong to the heterogeneous crystal structure.The specific surface areas of the two coordination polymers are 54 and 58 m^(2)/g,respectively.[Ni(tib)(mpda)(H_(2)O)_(2)]·H_(2)O has a complete cyclic voltammetric curve(reduction and oxidation potentials are 0.205 and 0.563 V,respectively)and good scanning rate.

关 键 词：柔性苯二乙酸 配位聚合物 水热合成 晶体结构 电化学性能 

分 类 号：O641[理学—物理化学]