基于β-二酮和四甲基咪唑鎓配体的Dy(Ⅲ)配合物的合成、结构和磁学性质（英文）  

Synthesis, Structure and Magnetic Property of Dysprosium(Ⅲ)Complex Based on β-Diketonate and Tetramethylimidazolium Ligands

作　　者：葛景园 陈忠研 马建平[3] 黄帅[1] 杜佳 王海欧[1] 苏昆朋[1] 王海英 GE Jing-Yuan;CHEN Zhong-Yan;MA Jian-Ping;HUANG Shuai;DU Jia;WANG Hai-Ou;SU Kun-Peng;WANG Hai-Ying(College of Materials and Environmental Engineering,Hangzhou Dianzi University,Hangzhou 310018,China;State Key Laboratory of Coordination Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing 210023,China;School of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,China)

机构地区：[1]杭州电子科技大学材料与环境工程学院,杭州310018 [2]南京大学化学化工学院,配位化学国家重点实验室,南京210023 [3]山东师范大学化学化工与材料科学学院,济南250014

出　　处：《无机化学学报》2018年第9期1761-1767,共7页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.11604067,11704091),杭州电子科技大学科研启动基金(No.KYS205618010)和南京大学配位化学国家重点实验室开放研究基金(No.SKLCC1810)资助项目。

摘　　要：利用2,2,6,6-四甲基庚二酮阴离子(thd-)和1,3,4,5-四甲基咪唑鎓阳离子(Tmim^+)合成了一例单核Dy(Ⅲ)配合物(Tmim)[Dy(thd)_4],通过X射线单晶衍射、元素分析等对其进行了结构表征并研究了该配合物的磁学性质。Dy(Ⅲ)中心处于正方反棱柱(D_(4d))的配位环境,其SAPR-8参数为0.316。空间分布中,每个[Dy(thd)_4]-阴离子被Tmim^+阳离子有规律地分开,Dy…Dy最短距离为1.229 8 nm。磁性研究表明配合物1具有场诱导的单离子磁体行为,在500 Oe直流场下能垒达到30.9 K。A mononuclear dysprosium(Ⅲ)complex,namely(Tmim)[Dy(thd)4](1),was synthesized by the combination of 2,2,6,6-tetramethylheptanedione(thd-)anion ligand and a 1,3,4,5-tetramethylimidazolium(Tmim+)cation balancing the charge.Complex 1 was structurally and magnetically characterized.The coordination geometry of Dy(Ⅲ)ion is ascribed to approximately square antiprismatic(D4d)symmetry with the SAPR-8 parameter of 0.316.In the solid state,every mononuclear[Dy(thd)4]-anion is separated by Tmim+cations regularly and the shortest Dy…Dy distance is 1.229 8 nm.Magnetic studies suggest that complex 1 behaves as a single-ion magnet under 500 Oe dc-applied field with a high effective energy of 30.9 K.CCDC:1837597.

关 键 词：配位化学 镝配合物 晶体结构 磁学性质 

分 类 号：O614.342[理学—无机化学]