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
林涛海 1张军 1葛庆 1张钢强 2张美丽3
作者信息
- 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
- 折叠
摘要
基于柔性苯二乙酸水热合成2个配位聚合物([Co(tib)(mpda)(H2O)2]·H2O,[Ni(tib)(mpda)(H2O)2]·H2O)(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)(H2O)2]·H2O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0.262 4 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 m2/g,且[Ni(tib)(mpda)(H2O)2]·H2O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.
Abstract
Two coordination polymers([Co(tib)(mpda)(H2 O)2]·H2 O,[Ni(tib)(mpda)(H2 O)2]·H2 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)(H2O)2]·H2O,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 0.262 4 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 ofthe two coordination polymers are 54 and 58 m2/g,respectively.[Ni(tib)(mpda)(H2 O)2]·H2 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Key words
flexible benzodiacetic acid/coordination polymer/hydro-thermal synthesis/crystal structure/electrochemical property引用本文复制引用
基金项目
新疆维吾尔自治区科技重大专项(2021A01002-3)
陕西省科技厅项目(2022JM-095)
榆林市科技局项目(CXY-2021-126)
出版年
2024
国家科技期刊平台
NSTL
万方数据