对羟基苯基乙酸锌配位聚合物的合成、晶体结构及荧光性质  

Synthese,Crystal Structure and Luminescent Property of Zinc (II) Coordination Polymer with Flexible 4-Hydroxyphenylacetic Acid

作　　者：路璐[1] 阿洛伍各 王凤莲[1] 余小芳[1] 钟艳蓉 景倩[1] 

机构地区：[1]四川理工学院化学与制药工程学院,四川自贡643000

出　　处：《四川理工学院学报（自然科学版）》2015年第6期11-15,共5页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：四川理工学院省级大学生创新创业训练计划项目(201510622034);四川理工学院校级培育项目(2014PY01;2015PY03)

摘　　要：利用柔性配体对羟基苯乙酸(H_2L)、刚性配体4,4'-联吡啶(4,4'-bipy)与醋酸锌在水热条件下合成了1个新型柔性配位聚合物{[Zn(HL)2(4,4'-bipy)]_n·n CH_3OH}(1)。X-射线单晶衍射显示1通过两个对羟基苯乙酸羧基的连接构成双核金属Zn配位单元,锌离子呈现为八面体的空间构型。1通过4,4'-联吡啶的桥连构筑成1D的链状结构,链状结构又通过羧酸配体间氢键O3-H3…O1、O6-H6…O7和O7-H7A…O2构筑成二维超分子结构。同时,配合物1与配体对羟基苯乙酸荧光相比,荧光强度大大增强并发生了红移,配合物1具有良好的荧光性能。A new Zn - based complex with chemical formulae { [ Zn （ HL）2 （bipy） ].. nCH3 OH } （ 1 ） （ HL = p -hydrox- y-phenylacetic acid, bipy = 4,4＇-bipyridine）, has been synthesized. Single-crystal X-ray diffraction reveals that compound 1 has a dinuclear Zn （II） unit linking by two carboxylate groups. Zn2＋ ion is coordinated by six donor atoms and has the structure of octahedron. The 1D chain structure of the compound 1 is built through 4,4＇-bipy bridging. 1D chains are extended via the O3-H3---O1, O6-H6...O7 and O7-H7A…02 hydrogen bonds between carboxylate ligand into a 2D supra- molecular structures. Furthermore, compared with ligand p-hydoxyphenylactic acid, the luminescence intensity of compound 1 increases greatly and the red shift occurs. The results show that compound 1 has good fluorescence properties.

关 键 词：柔性配体 一维链 XRD 荧光 

分 类 号：O614.121[理学—无机化学] O625.621[理学—化学]