基于4,5-咪唑二羧酸配体镉配位化合物的制备及性能  

Preparation and Properties of a Cadmium Coordination Compound with 4,5-Imidazoledicarboxylic Acid

作　　者：李苗 郑易萌 孙已婷 毛玉玲 朱百丽 崔术新[1] LI Miao;ZHENG Yimeng;SUN Yiting;MAO Yuling;ZHU Baili;CUI Shuxin(College of Chemistry and Chemical Engineering,Mudanjiang Normal University,Mudanjiang 157011,China)

机构地区：[1]牡丹江师范学院化学化工学院,牡丹江157011

出　　处：《人工晶体学报》2025年第1期121-125,共5页Journal of Synthetic Crystals

基　　金：黑龙江省省属高等学校基本科研业务费科研项目(1453QN018,1452TD016);黑龙江省自然科学基金(SS2023B003);黑龙江省课程思政高质量建设项目(KCSZAL-2022007);大学生创新创业训练计划项目(202310233081,202310233003,202310233004)。

摘　　要：以4,5-咪唑二羧酸(H_(3)IDC)和四水合硝酸镉(Cd(NO_(3))_(2)·4H_(2)O)为原料,采用水热法制备了配合物{[Cd(H_(2)IDC)_(2)(H_(2)O)_(2)]·_(2)H_(2)O}_n(1)。采用单晶X射线衍射(SXRD)、傅里叶变换红外光谱(FT-IR)、热重分析(TGA)、荧光光谱(FL)对配合物1进行结构测定和表征。SXRD分析表明,配合物1属于单斜晶系P2_(1/n)空间群。在配合物1中,Cd(Ⅱ)离子与H_(2)IDC-阴离子和水分子配位形成六配位的八面体构型,并通过氢键进一步扩展形成三维结构。室温下的荧光光谱分析表明,当激发波长为296 nm时,配合物1在598 nm处有最强的发射峰。The compound{[Cd(H_(2)IDC)_(2)(H_(2)O)_(2)]·2H_(2)O}n(1)was synthesized via a hydrothermal method,utilizing 4,5-imidazoledicarboxylic acid(H_(3)IDC)and Cd(NO_(3))_(2)·4H_(2)O as raw materials.Single crystal X-ray diffraction(SXRD),Fourier transform infrared spectroscopy(FT-IR),thermogravimetric analysis(TGA),and fluorescence spectroscopy(FL)were employed to ascertain and elucidate the structure of compound 1.SXRD analysis reveals that compound 1 categorized under the P2_(1/n)space group of monoclinic crystal system.In compound 1,Cd(II)ions coordinate with H 2 IDC-anions and water molecules to form a six-coordinated octahedral configuration,which is further extended into a three-dimensional structure through hydrogen bonding.Fluorescence spectrum analysis at room temperature indicates that compound 1 exhibits the most intense emission peak at 598 nm when excited at a wavelength of 296 nm.

关 键 词：Cd(Ⅱ)配合物 4 5-咪唑二羧酸 水热合成 晶体结构 荧光性能 

分 类 号：O641.4[理学—物理化学]