基于4,4′-联吡啶配体金属锌配合物的制备及性能研究  

Preparation and Properties of Zinc Complexes Based on 4,4'-Bipyridine Ligands

作　　者：初晶莹 崔术新[1] 刘娇 CHU Jingying;CUI Shuxin;LIU Jiao(Mudanjiang Normal University Mudanjiang,College of Chemisitry and Chenical Engineering,Mudanjiang 157011,China)

机构地区：[1]牡丹江师范学院化学化工学院,黑龙江牡丹江157011

出　　处：《牡丹江师范学院学报（自然科学版）》2024年第3期40-44,共5页Journal of Mudanjiang Normal University：Natural Sciences Edition

基　　金：黑龙江省自然科学基金项目(SS2023B003);黑龙江省课程思政高质量建设项目(KCSZAL-2022007);黑龙江省教育厅教学改革项目(SJGY2021905)。

摘　　要：采用溶剂热合成法制得[Zn(ipa)(4,4′-bipy)·H_(2)O]_(n)(1).实验以六水合硝酸锌Zn(NO_(3))_(2)·6H_(2)O、间苯二甲酸(H_(2)ipa)、DMF(N,N′-二甲基甲酰胺)、4,4′-联吡啶(4,4′-bpy)为原料(ipa^(2-)=间苯二甲酸根,bipy=联吡啶),在溶剂热条件下合成金属锌配合物1.采用单晶X-射线衍射法、荧光光谱分析法(FL)、粉末X射线衍射(PX R D)、红外光谱法(FT-IR)和热重分析法(T GA)对其结构测定和表征.在配合物1中,Zn(Ⅱ)与4,4′-联吡啶的N原子和ipa^(2-)阴离子的羧基O原子形成六配位的扭曲的八面体结构,进一步扩展形成具有孔道的三维Zn(Ⅱ)金属有机框架(MOF),H_(2)O分子在孔道中.室温下荧光光谱分析表明,当激发波长为365nm时,配合物1在458.6nm处具有最强的发射峰.[Zn(ipa)(4,4'-bipy)·H_(2)O]_(n)(1)was prepared by solvothermal synthesis.Zinc complex 1 was synthesized from zinc nitrate hexahydrate Zn(NO_(3))_(2)·6H_(2)O,isophthalic acid(H_(2)ipa),DMF(N,N'-dimethylformamide)and 4,4'-bipyridine(4,4'-bpy)under solvothermal conditions.Their structures were characterized by single crystal X-ray diffraction,Fluorescence spectroscopy(FL),Powder X-ray diffraction(PXRD),infrared spectroscopy(FT-IR)and thermogravimetric analysis(TGA).In complex 1,Zn(No_(3))_(2) forms a six-coordinated twisted octahedral structure with the N atom of 4,4'-bipyridine and the carboxyl O atom of ipa^(2-)anion,which further expands to form a three-dimensional Zn(Ⅱ)metal-organic framework(MOF)with pores in which H_(2)O molecules are present.The fluorescence spectra at room temperature show that the complex 1 has the strongest emission peak at 458.6 nm when the excitation wavelength is 365 nm.

关 键 词：溶剂热合成法 配合物 固态荧光 

分 类 号：O641.4[理学—物理化学]