对羟基苯甲酸构筑的混合价态双核铽配合物的合成、晶体结构及荧光性质  

Synthesis,Crystal Structure and Fluorescence Properties of a Mixed Valence Dinuclear Terbium Complex with p-Hydroxybenzoic Acid

作　　者：林雅清 罗江楠 杨巨豪 钟佳君 徐存进 LIN Yaqing;LUO Jiangnan;YANG Juhao;ZHONG Jiajun;XU Cunjin(Kharkiv Institute at Hangzhou Normal University,Hangzhou 311121,China;Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education,College of Material,Chemistry and Chemical Engineering,Hangzhou 311121,China;Zhejiang Provincial Key Laboratory of Organosilicon Material Technology,Hangzhou Normal University,Hangzhou 311121,China)

机构地区：[1]杭州师范大学哈尔科夫学院,浙江杭州311121 [2]杭州师范大学材料与化学化工学院有机硅化学及材料技术教育部重点实验室,浙江杭州311121 [3]浙江省有机硅材料技术重点实验室,浙江杭州311121

出　　处：《杭州师范大学学报（自然科学版）》2023年第5期454-457,共4页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：杭州师范大学“星光计划”学生创新创业项目.

摘　　要：用溶液法制备了混合价态双核铽配合物NH_(4)[Tb_(2)(PHBA)_(8)],利用红外光谱、质谱和X射线单晶衍射对其结构进行表征.该配合物属斜方晶系,Pccn空间群,为[NH_(4)]+与[Tb_(2)(PHBA)_(8)]-的盐.每个结构单元含有2个铽离子(Tb^(3+),Tb^(4+)),每个铽离子与6个不同PHBA配体中的羧基O原子以8配位方式(2个羧基为螯合,4个为桥式)配位,构建具有混合价态的双核铽配合物.该配合物在紫外光激发下,发射出以493、548、589和625 nm为中心的发射峰,这是由Tb^(3+)从^(5)D_(4)激发态到^(7)F_(J)(J=6,5,4,3)的能级跃迁引起的.The mixed valence dinuclear terbium complex NH_(4)[Tb_(2)(PHBA)_(8)]was prepared by solution method,and characterized by IR,MS and X-ray diffraction.The complex crystallizes in orthorhombic system,Pccn space group.The complex is a salt of[NH_(4)]+and[Tb_(2)(PHBA)_(8)]-.Each structural unit contains two terbium ions(Tb^(3+),Tb^(4+)).Each terbium ion is coordinated with carboxyl O atoms in six different PHBA ligands in an 8-coordinated manner(two carboxyl groups are chelated,and four are bridged)to construct a mixed valence dinuclear terbium complex.The complex emits emission peaks centered at 493,548,589 and 625 nm under UV excitation,which are caused by the transitions of Tb 3+ions from the^(5)D_(4)excited state to the^(7)F_(J)(J=6,5,4,3)levels.

关 键 词：铽配合物 对羟基苯甲酸 晶体结构 荧光性质 

分 类 号：O631.24[理学—高分子化学]