二乙酰对甲苯酒石酸构筑的三个镧系配合物的合成、结构、荧光及光催化性质  

Synthesis,Structures,Luminescence and Photocatalytic Properties of Three Lanthanide Complexes Based on Ditoluoyl-Tartrate

作　　者：高晓丽[1] 韩美荣 任慧芳 冯思思 GAO Xiao‑Li;HAN Mei‑Rong;REN Hui‑Fang;FENG Si‑Si(Department of Chemistry,Taiyuan Normal University,Jinzhong,Shanxi 030619,China;Institute of Molecular Science,Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry,Shanxi University,Taiyuan 030006,China)

机构地区：[1]太原师范学院化学系,晋中030619 [2]山西大学分子科学研究所,化学生物学与分子工程教育部重点实验室,太原030006

出　　处：《无机化学学报》2021年第2期375-384,共10页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21671124);山西省1331工程重点创新研究团队;山西省自然科学基金(No.201701D121039)资助

摘　　要：合成并通过红外光谱、元素分析、单晶及粉末衍射表征了3个一维配合物[Ln(HDTTA)3(CH3OH)3]n(Ln=Ce(1),Pr(2),Sm(3))的结构(D-H2DTTA为(+)-二(对甲苯酰)-D-酒石酸)。单晶衍射结果表明,3个配合物同构,结晶于三方晶系手性空间群R3,在c方向呈现一维链状结构。荧光光谱表明由于D-H2DTTA配体的激发态能级与Pr^3+和Sm^3+离子激发态能级接近,所以可以敏化2种离子的f电子在609 nm处的发光。此外,配合物1在紫外光照射下表现出良好的光催化降解染料亚甲基蓝的性质,在无外加试剂条件下160 min内降解率可达76%。Three one-dimensional(1D)lanthanide complexes[Ln(HDTTA)3(CH3OH)3]n(Ln=Ce(1),Pr(2),Sm(3))(D-H2DTTA=(+)-di(p-toluoyl)-D-tartaric acid)were synthesized at room temperature and normal pressure.They were fully structurally characterized by IR,elemental analysis,single-crystal and powder X-ray diffraction.The structure analysis shows that complexes 1~3 are isomorphic.They belong to chiral R3 space group of trigonal system and display infinite 1D chains structure along c axis.Photoluminescence measurements indicated that D-H2DTTA ligand can partly sensitize the f-f transition luminescence of Pr3+and Sm^3+cations but Ce^3+at 609 nm,which is attributed to the mismatching between the excited state energy levels of metal cations and ligands.Additionally,Complex 1 exhibited photocatalytic property for the degradation of methylene blue under UV light irradiation in the solution.The photocatalytic performance was up to 76%within 160 min without any other reagents.CCDC:2017862,1;2017863,2;2017864,3.

关 键 词：镧配合物 二(对甲苯)酰酒石酸 晶体结构 荧光 光催化 

分 类 号：O614.332[理学—无机化学] O614.334[理学—化学]