CAJ | 학술논문

在水热条件下,以5-(4-吡啶基)间苯二甲酸(H2pyip)和草酸阴离子为混合的桥连配体与Nd2O3 反应得到无色块状晶体.通过单晶X射线衍射、元素分析、红外分析、热重分析和粉末衍射对该配位聚合物进行表征.通过单晶X射线衍射分析可知:该配位聚合物属于单斜晶系, P21/c空间群.在结构中存在由平行四边形的次级结构单元构筑的二维稀土草酸层,相邻的稀土草酸层进一步通过pyip2-桥连形成三维框架结构.
재수열조건하,이5-(4-필정기)간분이갑산(H2pyip)화초산음리자위혼합적교련배체여Nd2O3 반응득도무색괴상정체.통과단정X사선연사、원소분석、홍외분석、열중분석화분말연사대해배위취합물진행표정.통과단정X사선연사분석가지:해배위취합물속우단사정계, P21/c공간군.재결구중존재유평행사변형적차급결구단원구축적이유희토초산층,상린적희토초산층진일보통과pyip2-교련형성삼유광가결구.
Under the hydrothermal conditions, the mixed bridging ligands H2 pyip and oxalate anion ( H2pyip=5-(4-pyridyl)-isophthalic acid,H2ox=oxalic acid) are reacted with Nd2O3 ,affording colour-less brick-like crystals. The compound is characterized by single-crystal X-ray diffraction,elemental analy-sis,infrared spectra analysis,thermogravimetric analysis and powder X-ray diffraction. The single-crystal X-ray diffraction analysis results show that the compound belongs to monoclinic system, P21/c space group. The rare earth oxalate layers constructed from parallelogram secondary building units exist in the structure,and adjacent rare earth oxalate layers are further connected by pyip2- ligands to form a three-di-mensional framework.