2,4,6-三甲基苯甲酸和1,10-邻菲啰啉双核铽配合物的合成和晶体结构  

Synthesis,Crystal Structure of A Binuclear Terbium Complex with 2,4,6-trimethylbenzoic Acid and 1,10-phenanthroline

作　　者：李东平[1] 冯泳兰[1] 陈志敏[1] 邝代治[1] 张春华[1] 杨颖群[1] 李薇[1] 

机构地区：[1]衡阳师范学院化学与材料科学系,衡阳421008

出　　处：《无机化学学报》2006年第11期2097-2100,共4页Chinese Journal of Inorganic Chemistry

基　　金：衡阳师范学院科研启动基金(No.2004D18)资助项目。

摘　　要：A binuclear terbium complex with 2,4,6-Trimethylbenzoate and 1,10-phenanthroline,[Tb2(TMBA)6(Phen)2],has been synthesized(TMBA=2,4,6-Trimethylbenzoic acid and phen=1,10-phenanthroline)and characterized by IR,elemental analysis and X-ray diffraction methods.The title complex crystallizes in monoclinic system,space group P21 /c with a=1.327 5(2)nm,b=2.817 9(5)nm,c=1.282 5(2)nm,β=116.692(3)°,V=4.286 2(13)nm3,Z=4,Dc=1.423 g·cm-3.There are four bridged carboxylate groups of the 2,4,6-trimethylbenzoic acid bonded to the two terbium ions,each ions is also chelated with the two oxygen atoms of a molecule of the 2,4,6-trimethylbenzoic acid and the two nitrogen atoms of a 1,10-phenanthroline respectively,forming a 8-coordination distorted square antiprism.Average Tb-O and Tb-Ndistance of the two Tb(Ⅲ)ions are equal respectively.This shows the two terbium ions are in the same chemical enviorments.The complex emits intense green fluorescence under ultraviolet light.CCDC:619215.A binuclear terbium complex with 2,4,6-Trimethylbenzoate and 1,10-phenanthroline, [Tb2（TMBA）6（Phen）2], has been synthesized （TMBA=2,4,6-Trimethylbenzoic acid and phen=1,10-phenanthroline） and characterized by IR, elemental analysis and X-ray diffraction methods. The title complex crystallizes in monoclinic system, space group P21/c with a=1.327 5（2） nm, b=2.817 9（5） nm, c=1.2825（2） nm, β=116.692（3）°, V=4.286 2（13） nm^3, Z=4, Dc=1.423 g. cm^-3. There are four bridged carboxylate groups of the 2,4,6-trimethylbenzoic acid bonded to the two terbium ions, each ions is also chelated with the two oxygen atoms of a molecule of the 2,4,6-trimethylbenzoic acid and the two nitrogen atoms of a 1,10-phenanthroline respectively, forming a 8-coordination distorted square antiprism. Average Tb-O and Tb-Ndistance of the two Tb（Ⅲ） ions are equal respectively. This shows the two terbium ions are in the same chemical enviorments. The complex emits intense green fluorescence under ultraviolet light. CCDC： 619215.

关 键 词：铽 2 4 6-三甲基苯甲酸 晶体结构 Π-Π堆积作用 荧光 

分 类 号：O614.341[理学—无机化学]