两个含有2,6-二氟苯甲酸配体稀土配合物的合成及晶体结构  

Synthesis, Crystal Structures of Two Lanthanides Complexes with 2,6-Difluorobenzoic Acid

作　　者：彭雄鑫 王文敏 钟宇菲 肖伟 鲍光明[3] 袁厚群[1] PENG Xiong-Xin;WANG Wen-Min;ZHONG Yu-Fei;XIAO Wei;BAO Guang-Ming;YUAN Hou-Qun(School of Science,Jiangxi Agricultural University,Nanchang 330045,China;Assets and Laboratory management,Jiangxi Agricultural University,Nanchang 330045,China;School of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China)

机构地区：[1]江西农业大学理学院,南昌330045 [2]江西农业大学资产与实验室管理处,南昌330045 [3]江西农业大学动物科学与技术学院,南昌330045

出　　处：《无机化学学报》2020年第5期921-926,共6页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21461011,31560712,31960720);江西省自然科学基金(No.20192ACBL21018,20112BBF60023);江西省教育厅基金(No.GJJ170245,GJJ170257)资助项目。

摘　　要：利用2,6-二氟苯甲酸和1,10-菲咯啉作为配体分别与Tm^3+、Yb^3+离子在常温下反应,制得2个稀土配合物[Tm(dfba)2(phen)(μ2-dfba)]2 (1)和[Yb(dfba)2(phen)(μ2-dfba)]2 (2)(dfba-=2,6-二氟苯甲酸根,phen=1,10-菲咯啉)。用元素分析、红外光谱对2个稀土配合物进行了表征,并用单晶X射线衍射确定了配合物的晶体结构;测定了配合物1和2的热稳定性。结构分析表明配合物1和2具有相似的晶体结构。每个Ln^3+与2个dfba-配体和1个phen分子配位,形成[Ln(dfba)2(phen)]+结构单元,[Ln(dfba)2(phen)]+单元再通过2个不同的dfba-配体桥联形成双核分子[Ln(dfba)2(phen)(μ2-dfba)]2(Ln=Tm,Yb)。Two complexes [Tm(dfba)2(phen)(μ2-dfba)]2(1) and [Yb(dfba)2(phen)(μ2-dfba)]2(2)(dfba-=2,6-difluorobenzoate and phen=1,10-phenanthroline) were synthesized by the reaction of 2,6-difluorobenzote and phenanthroline with Tm^3+and Yb^3+ions,respectively.The complexes 1 and 2 were characterized by elemental analysis,FT-IR spectra,thermal gravimetric analysis(TGA) and their crystal structures were determined by single X-ray diffraction.The crystal structures analysis indicated that the complexes 1 and 2 are isostructural.Each Ln^3+is coordinated with two dfba-ligands and one phen molecule to form a [Ln(dfba)2(phen)]+unit,and the neighboring two [Ln(dfba)2(phen)]+units are bridged by two different dfba-ligands to form a binuclear molecule,[Ln(dfba)2(phen)(μ2-dfba)]2(Ln=Tm,Yb).CCDC:1960656,1;1960657,2.

关 键 词：2 6-二氟苯甲酸 1 10-菲咯啉 铥 镱 晶体结构 

分 类 号：O614.345[理学—无机化学] O614.346[理学—化学]